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Parthenogenesis
Parthenogenesis Development of an egg into a newborn without fertilization by a sperm. Parthenogenic species are monochoric, that is, all members of the species are of the same gonadal type; for example, some species of whiptail lizard. This is also called "virgin birth" in the vernacular.
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Development
The process of growth and differentiation.
Fertilization
The combining of the genetic material carried by sperm and egg to create an embryo. Normally occurs inside the fallopian tube (in vivo) but may also occur in a petri dish (in vitro).
Sperm
A sperm cell, or spermatozoon (pl. spermatozoa) (in Greek: sperm = semen and zoon = alive), is the haploid cell that is the male gamete. It is carried in fluid called semen, and is capable of fertilising an egg cell to form a zygote. A zygote can grow into a new organism, such as a human. Sperm cells contain half of the genetic information needed to create life. Generally, the sex of the offspring is determined by the sperm, through the chromosomal pair "XX" (for a female) or "XY" (for a male).
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Partial denture
Removable dental prosthesis (appliance) replacing one or more natural teeth.
PARTIAL DENTURES
A partial denture replaces missing teeth so that the remaining teeth, oral tissues and cheeks have support. A partial denture also will allow the patient to chew and speak properly and smile with confidence. A partial denture, like a complete denture, is made out of acrylic but unlike a denture it also uses a metal framework that attaches to the remaining teeth by use of clasps or precision attachments, which attach to crowns and give a partial denture a tighter fit and a more natural look. A partial denture is fabricated by taking impressions after the necessary work has been done on the remaining natural teeth. A partial denture will be checked for any discomfort or pressure. If a partial denture does not fit properly, a clasp or tooth can break as an end result. A partial denture must be removed before proper brushing can be accomplished. The teeth, gums and partial denture must all be cared for by the patient. Like a complete denture, regular examinations by a hygienist and dentist are important to check the supporting teeth for decay and periodontal disease and to check the continuing fit and comfort of the partial denture. See also "Dentures."
Partialism
Fetishism of the type in which the fetishistic attachment is not to an object but to a part of the partner's body, for example the hair or, in the case of acrotomophilia, the stump of an amputated limb.
Partners HealthCare System
Partners HealthCare System is a hospital in Boston, Massachusetts (USA).
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Paranoid
Characterized by thinking that is delusional and, maybe, hallucinatory. It is incorrectly used as a synonym for suspicious.
Paraphilia
A condition occurring in men and women of being compulsively responsive to and obligatively dependent upon an unusual and personally or socially unacceptable stimulus, perceived or in the imagery of fantasy, for optimal initiation and maintenance of erotosexual arousal and the facilitation or attainment of orgasm. Paraphilic imagery may be replayed in fantasy during solo masturbation or intercourse with a partner. In legal terminology, a paraphilia is a perversion or deviancy; and in the vernacular it is kinky or bizarre sex.
Paraphiliac
A person who manifests a paraphilia. Either of the two endings, -iac and -ile, may be used for each of the philias; a person with a paraphilia.
Parasympathetic nervous system
Pertaining to that part of the autonomic nervous system which usually prepares the organism to deal more effectively with a situation of peace, rest, and recovery, the functions of which contrast with or reciprocate those of the sympathetic system Paradoxically, the parasympathetic system is responsible for the physiological phenomenon of sexual arousal, but not sexual orgasm and/or ejaculation.
Paraurethral glands
In females, a zone of glandular tissue located around the canal of the urethra that, in some cases, releases a fluid which escapes from the urethral opening at the time of orgasm. The male counterpart is the prostate gland. These glands, and their location, are otherwise described as the G-Spot, Gräfenberg spot, zone or area.
Parthenogenesis
Partialism
Fetishism of the type in which the fetishistic attachment is not to an object but to a part of the partner's body, for example the hair or, in the case of acrotomophilia, the stump of an amputated limb.
Pathognomonic
Pertaining to a distinctive sign, symptom, or characteristics of a disease on which a diagnosis can be made.
Pederasty
Literally, boy love. Pederasty is usually used in the restricted sense to refer to anal intercourse performed by an older youth or man on a prepubertal or early pubertal boy. The term is based on the custom, tracing back to classical Greece, of older men having younger adolescent male lovers as the recipients of anal intercourse. It is not conventionally applied to the relationship between an older woman and a boy. It is not a synonym for pedophilia, nor for ephebophilia.
Pedophilia
A paraphilia of the stigmatic/eligibilic type in which sexuoerotic arousal and the facilitation or attainment of orgasm in a postpubertal adolescent or adult male or female are responsive to and [dependent upon] contingent on having a juvenile partner of prepubertal or peripubertal, developmental status. Pedophile relationships may be heterosexual or homosexual or, more rarely, bisexual. They may take place in imagery or actuality, or both. The technical term for the reciprocal paraphilic condition in which an older person impersonates a juvenile is paraphilic juvenilism. The age and developmental status of the partner distinguishes pedophilia from nepiophilia and ephebophilia. (adjective, pedophilic): the condition in which an adult is responsive to or dependent on the imagery or actuality of erotic/sexual activity with a peripubertal or early pubertal boy or girl, in order to obtain erotic arousal and facilitate or achieve orgasm. A pedophiliac may be a male or a female. Pedophilic activity may be replayed in fantasy during masturbation or copulation with an older partner.
Penetration phobia
A hypophilic condition or syndrome, variable in etiology, of irrational panic and disabling fear that prevents having the vagina (or anus, or mouth) entered by something, particularly the penis, or the penis enveloped in something, particularly the vagina (or anus, or mouth).
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