Glossary P

Polygyny refers to the Condition or practice of having more than one wife at one time.

Polymerase chain reaction (PCR) refers to a technique in molecular genetics that permits the analysis of any short sequence of DNA (or RNA) even in samples containing only minute quantities of DNA or RNA. PCR is used to reproduce (amplify) selected sections of DNA or RNA for analysis.

Polymicrogyria refers to a Congenital disorder that can be traced to a disruption of the structure of the developing brain during the fifth to sixth month of gestation. As a consequence of this disruption, the gyri fail to develop appropriately.

Polymorphous perverse refers to Freud's term for the infant's indiscriminate, undifferentiated sexuality.

Polyonymous means having or known by many names. [

Polyphagia may be defined as excessive appetite or eating. Also the habit of feeding on many kinds of food.

Polypharmacy is the use of multiple medications.

Polyps refer to small clumps of cells that turn cancerous and can result in several kinds of Cancer, like Colon Cancer.