sperm analysis

the evaluation of male fertility according to sperm count per milliliter of ejaculate and sperm morphology (i.e., form and structure) and motility. Also called seminal analysis.

Browse dictionary by letter

a b c d e f g h i j k l m n o p q r s t u v w x y z

Psychology term of the day

February 20th 2025

principle of constancy

in classical psychoanalytic theory, the idea that all mental processes tend toward a state of equilibrium and the stability of the inorganic state. Also called constancy law; law of constancy. See also death instinct; nirvana principle.