Month: December 2020
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Premenstrual tension
Stress occurring during the last 7-10 days of the menstrual cycle that is believed due to a change in the processing of sodium in the central nervous system and often accompanied by headache, backache, depression, and irritability. A condition of nervousness, irritability, emotional disturbance, headache, and/or depression affecting some women for up to about ten…
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Premedical (school or studies)
The stage of medical education that consists chiefly of studies in biology, chemistry, and social sciences. Referring to the studies that a person must complete before entering medical school.
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Premature withdrawal
Coitus interruptus.
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Premature occupational foreclosure
The process of deciding against an occupation before a person has sufficient information or experience to evaluate it objectively and realistically.
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Premature birth
A birth that occurs after the 6th month of pregnancy, but before the end of the normal term. The birth of a baby earlier than 37 weeks from conception. The delivery of a baby before or during the 37th week of pregnancy. Smaller and more fragile than full-term babies, premature infants often must be closely…
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Premature
An infant born before full term. Before the expected or desirable time. In pregnancy, referring to an infant born well before the due date, especially before the 37th week of gestation, either because labor began prematurely or because a physician induced labor, as when the mother’s or infant’s health was endangered or when the infant…
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Premarital intercourse
Coitus before the persons (partners) are married.
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Premack principle
A process whereby learners are allowed to engage in a self-selected activity after they complete the assigned work.
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Preludin
A commercial preparation of phenmetrazine.
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Prejudice
An attitude that predisposes a person to respond positively or negatively to a person, or group on the basis of social class, race, or category membership. A preconceived judgment or opinion formed without factual knowledge. A negative feeling about a certain group of people, based on stereotypes.