Sexual Dictionary - letter P

Painful periods
see dysmenorrhea.
Pancreas
A gland situated behind the stomach that secretes a digestive fluid into the small intestine that aid in digestion and also secretes the hormone insulin into the blood, where it regulate blood glucose levels.
Pap test
a screening test that involves microscopic examination of cells collected from the cervix. It is done by gently touching a cotton swab on the cervix and then wiping the swab on a slide which is treated and examined under a microscope. The Pap test can detect changes that may be cancer or may lead to cancer, and to show noncancerous conditions, such as infection or inflammation.
Papule
solid, raised skin lesion, less than 1 cm in diameter. Papules do not contain pus.
Paraphilia
abnormal sexual activities, fantasies, feelings. Includes :
  • exhibitionism - the perverse act of exposing and attracting attention to own's genitals
  • fetishism - sexual arousal or gratification resulting from handling a fetish or a specific part of the body other than the sexual organs
  • pedophilia - sexual activity of an adult with a child
  • voyeurism - perversion in which a person receives sexual gratification from seeing the genitalia of others or witnessing others' sexual behavior
  • sadism - sexual arousal or gratification resulting from the infliction of pain, fear, and/or humiliation on a sexual partner
  • zoophilia, zoophilism - sexual attraction to animals
Paraphimosis
the condition in which the foreskin is retracted behind the head of the penis and cannot be returned to the unretracted position.
Parasite
an organism that lives in or on the living tissue of a host organism at the expense of it while contributing nothing to the survival of its host.
Parathyroid gland
glands in the neck, usually located within the thyroid gland, which produce parathyroid hormone which increases the calcium level in the blood.
Partner
person who is the member of a couple.
Passion
strong feeling or emotion like love, hate, courage, fear, joy, anger.
Pederast
a man who has sex (usually anal sex) with a boy as the passive partner.
Pederasty
in particularly - sexual relations between a man and a boy, usually anal sex with the boy as a passive partner; in a general - the practice of homosexuality.
Pediatrics
the branch of medicine that deals with the development and care of infants and children including the diagnosis and treatment of childhood disorders.
Pedophilia
a sexual dysfunction where the person (either adult or adolescent) achieves sexual arousal or satisfaction only through the sexual exposure of prepubescent children, watching them naked or undressing them or indulging in child pornography.
Pelvic Inflammatory Disease (PID)
pelvic inflammatory disease - an infection of the upper female reproductive organ - ovaries, fallopian tubes, uterus, and cervix - that results from other pelvic diseases like gonorrhea, chlamydia, or postpartum infections. Normally, the cervix prevents bacteria in the vagina from spreading up into the internal organs. If the cervix is exposed to a sexually transmitted disease (STDs) the cervix becomes infected. If the disease travels up through the internal organs, they can also become inflamed and infected. It can damage the fallopian tubes and cause of infertility.
Pelvis
the ring of bones that link the spine and hip bones, and protect abdominal organs such as the uterus in women.
Penetration
the act or process of entering or inserting something. The insertion of penis into the vagina - vaginal penetration, mouth - oral penetration or anus - anal penetration.
Penis
external male reproductive organ. It is made up of erectile tissue and blood vessels witch fills with blood and grows in size (becomes erect) during sexual excitement, and contains a tube called the urethra, which carries semen and urine to the outside of the body. Penis is homologous with the female clitoris as it develops from the same embryonic structure.
Perimenopause
the time period preceding menopause, during which menopausal symptoms may occur without full cessation of menstruation.
Perineum
the area between the vagina and anus in women and scrotum and anus in man.
Perversion
any aberrant sexual practice that is preferred to normal intercourse.
Petting
foreplay without contact with the genital organs. See also sexual behavior.
Peyronie's disease
condition that results in a curvature of an erect penis. The cause of this condition is the development of a rigid lump or plaque on the penis.
pH
potential (of) Hydrogen - a measure of the activity of hydrogen ions (H+) in a solution and, therefore, its acidity or alkalinity. A symbol for the degree of acidity or alkalinity of a substance. A pH of 7 is considered neutral, below 7 is called acidic and above 7 is called alkaline.
Phagocytes
blood cells that can engulf (by phagocytosis) and destroy microorganisms including viruses, bacteria, fungi and foreign particles. Contribute to the immune defenses of the body.
Pharmacist
a person trained to prepare and distribute medicinal drugs and to give information about them.
Pheromone
a chemical substance - odor - secreted by an individual that influences a physiological or behavioral response from another individual of the same species. In insect or animal pheromones are used to attract members of the opposite sex, to mark trails and territory, and as warnings.
Phimosis
a medical condition in which the opening of the foreskin of an uncircumcised penis is too tight so that it cannot be fully retracted over the head of the penis. Phimosis could be congenital - present since birth, or acquired - chronic inflammation of the head of the penis and foreskin, adhesions between head of the penis and foreskin or scar tissue from an injury. The classic treatment for phimosis is surgical.
Phobia
an irrational and intense fear of a situation or specific object.
Phone sex
sexually explicit conversation between two or more persons via telephone, especially when at least one of the participants masturbates or engages in sexual fantasy. See also sexual behavior.
Pill
commonly term for oral hormonal contraception for women. See also birth control methods.
Pineal gland
a small, cone-shaped endocrine gland in the brain of most vertebrates that secretes the hormones serotonin and melatonin in sync with light cycles. Melatonin is believed to control the biological rhythms of the body.
Also called epiphysis.
Pituitary gland
the master gland of the endocrine system witch it is located at the base of the brain. Controls other endocrine glands and many body processes such as growth and metabolism, including reproduction. Under the influence of neurohormone secreted by the hypothalamus, pituitary gland secretes follicle stimulating hormone and luteinizing hormone, which stimulate egg maturation and hormone production by the ovary. Pituitary gland is responsible for regulating the menstrual cycle. Disorders of this gland lead to irregular or absent ovulation in the female and abnormal or absent spermatozoa production in the male.
Also called hypophysis.
Placenta
a muscular and membranous vascular organ that develops in the uterus during pregnancy and partially enveloping the fetus, to which it is attached by the umbilical cord which links the blood supplies of pregnant woman to the fetus to provide oxygen, food, and other substances and nutrients and remove waste products - like carbon dioxide. Following birth, the placenta is expelled.
Poison
a substance that causes injury, illness or death when eaten, drunk, inhaled, applied to, or injected into the body.
Polycystic ovarian syndrome (PCOS)
a condition often associated with infertility, in which a hormonal imbalance prevents the egg-containing follicles on the ovaries from maturing and releasing an egg, instead forming sometimes painful ovarian cysts. Polycystic ovarian syndrome also may cause overproduction of estrogen, abnormal thickening of the uterine lining, very heavy and/or irregular periods, as well as acne and facial hair. The latter are caused by an overproduction of male hormones, including testosterone.
Also called polycystic ovarian disease - POD.
Polygamy
the practice of marriage to more then only one person at a time. Polygamy can be :
  • polyandry - marriage between one woman and two or more man simultaneously (rare)
  • polygyny - marriage between one man and two or more women simultaneously (more often)
In opposition with monogamy. See also bigamy.
Polymenorrhagia
excessive bleeding during menstruation with a menstrual cycle of reduced duration. A combination of menorrhagia and polymenorrhea.
Polymenorrhea
frequent but regular episodes of uterine bleeding, usually at intervals of 21 days or less. Can be caused by frequent ovulation caused by hyperactivity of the pituitary gland, constitutional disorders such as malnutrition, psychological disturbances, and pelvic disorders such as chronic pelvic inflammation.
Polyp
a growth that projects from the lining of mucous membrane. as the intestine, uterine wall or rectum.
Polyspermy
abnormal condition where the egg is fertilized by more than one spermatozoon. See also monospermy and dispermy.
Polyuria
frequent urination.
Pornographic
designed to arouse lust.
Pornography
the representation of the human body or human sexual behavior with the goal of sexual arousal. Pornography may use any of a variety of media written and spoken texts, photos, sculptures, drawings, films including animations and sounds. A distinction is sometimes made between soft core pornography and hardcore pornography. Soft core pornography generally refers to materials that feature nudity and sexually suggestive scenes, while hardcore pornography contains close-ups of aroused genitalia and sexual activities including penetration or external ejaculation.
The legal status of pornography varies widely. Most countries allow at least some form of pornography and soft core pornography is usually tame enough to be sold in general stores and (in some countries) to be shown on TV. Hardcore pornography, on the other hand, is usually regulated. Child pornography is illegal almost everywhere and most countries have restrictions on pornography involving violence or animals.
Postnatal
the time period after birth.
Postpartum
the period of first 6-8 weeks after delivery.
Pre-ejaculatory fluid
small amount of clear lubricating fluid which is discharged involuntarily from the penis during sexual excitement, prior to ejaculation. This fluid may contain viable spermatozoa and lead to pregnancy or sexually infections if not protected.
Also called pre-ejaculate or pre-cum.
Pregnancy tests
pregnancy tests measure a hormone called Human Chorionic Gonadotropin (hCG). hCG is produced by the stage of embryo development and by placental tissue. This begins as soon as the developing embryo has attached itself to the uterine wall. This same hormone is what is measured both by the Home Urine Pregnancy Tests and the Laboratory Pregnancy Tests. Pregnancy testing kits (when used according to the instructions) are usually accurate at least two weeks after having unprotected intercourse because this is roughly how long it will take for the hormone levels to show up on the test.
Pregnancy
the condition of carrying a developing fetus in the uterus. It starts with the process of fertilization, and ends in birth, miscarriage, or abortion.
Pregnant
the state of woman who carries a fetus until it develops to the point where is capable of living outside the uterus.
Premature birth
a birth occurring earlier than 37 weeks as most pregnancies last about 40 weeks. Can be caused by infections of the cervix, uterus or urinary tract, certain sexually transmitted disease (STDs), uterine or cervical abnormalities, inadequate nutrition during pregnancy or chronic disease such as high blood pressure, kidney disease and diabetes.
Premature labor
medical condition in which a birth occurring earlier than 37 weeks of gestation. Infants born prematurely have an increased risk of death in the first year of life. They are also at a greater risk for developing serious health problems.
Also called premature birth.
Premature ejaculation
ejaculation that occurs prior to the preferred time of the man and / or his partner, usually before or soon after penetration. Time is not the important factor but the satisfaction of two partners with the length of coitus. Premature ejaculation is one of the most common sexual problems, most men experience premature ejaculation at least once in their lives. Often adolescents and young men experience premature ejaculation during their first sexual encounters, but eventually learn to control their emotions and their body.
Premenstrual syndrome
a group of physical and emotional symptoms that some women experience during their menstrual cycle before, through and after menstruation. Physical symptoms include : headache, swelling of ankles, feet, and hands, backache, abdominal cramps or pain, abdominal fullness, gaseous, muscle spasms, breast tenderness, weight gain, recurrent cold sores, acne flare-up, nausea, bloating, bowel changes (constipation or diarrhea), decreased coordination, food cravings, decreased tolerance to sensory input (noise, light). Emotional symptoms include: anger, aggression, crying, memory problems, insomnia, nervousness, lack of concentration.
Prenatal
the time period preceding birth, during which the fetus develops in the uterus.
Prepuce
see foreskin.
Priapism
persistent, often painful erection of penis that can last from several hours to a few days despite the absence of both physical and psychological sexual stimulation.
Progesterone
a female sex hormone secreted by the ovary after ovulation during the second half of the menstrual cycle (luteal phase). It prepares t he lining of the uterus (endometrium) for implantation of a fertilized egg and allows for complete shedding of the endometrium at the time of menstruation. In the event of pregnancy, the progesterone level remains stable produced by the placenta during pregnancy in order to maintain pregnancy, and to promote development of the mammary glands.
Progestin
synthetic hormone having progesterone-like effects on the uterus, used for hormonal contraception, either in combination with an estrogen or alone. Also used in hormone replacement therapy (HRT) in menopausal women.
Prolaps
condition that occurs when an organ slips from its normal position.
Prostaglandin
a hormone produced by the lining of the uterus that is involved in vasodilatation and muscle contraction. It stimulates the uterus to contract. A high level of prostaglandins it is the cause of painful menstruations.
Prostate
a walnut-sized gland in the male reproductive system just below the bladder which surrounds part of the urethra and produces a milky fluid that combines with spermatozoa to form semen.
Prostatitis
an infectious or noninfectious inflammation of the prostate, characterized by pain in the testicles, or rectal area, including problems with ejaculation, or urination.
Protein
a molecule made up of amino acids. Proteins are the "building blocks" of the human body and are needed for the body to function properly.
Pubarche
onset of the puberty marked by the first signs of sexual maturation - appearance of pubic hair in a child.
Puberty
the period of life during which a child becomes a young adult. Puberty is characterized by secretions of hormones, development of secondary sexual characteristics, the full functionality of the reproductive organs and growth spurt. It is a time of changes both physically and emotionally. Puberty is a stage of adolescence.
Pubic hair
hair over the pubic region - pubic bone, the frontal genital area and in the crotch, and sometimes at the top of the inside of the legs, which appears at the onset of sexual maturity as an effect of rising levels of androgen hormones during puberty.
Pubic lice
a variety of small insects (lice) specialized to live in the human pubic hair but can sometimes be found in axillary or armpit hair, facial hair, or even eyelashes. Pubic lice are usually transmitted through direct physical contact, especially of the genital areas but occasionally transmission can occur through contact with an infested person's sheets, towels or clothes. It is considered a sexually transmitted infection even it can be contracted in other ways.
Also called pediculosis.
Pubococcygeus muscle
the muscle that encircles the vagina and the base of the penis and the anus. This muscle can be strengthened by exercises to aid in childbirth and bladder control and to increase sexual pleasure.
Pus
viscous, opaque, yellowish-white or green, foul-smelling fluid formed in infected tissue, containing white blood cells, dead cells, liquefied tissue elements, and microorganisms. An accumulation of pus in an enclosed tissue space is called an abscess.
Pussy
slang for the female genitalia.