Any of various physical characteristics that differ between the sexes but do not have a direct reproductive function, appearing in humans at puberty and in other animals at sexual maturity or during the mating season. Also called secondary sexual characteristic.
Psychology Definition of AVERSION: n. refers to a physiological or emotional response to a stimulus that indicates that the an object, organism, or situation, should be avoided. It is usuall Sign in
-The introduction of an aversive stimulus or the removal of a reinforcing stimulus after a behavior occurs in order to decrease or suppress the likelihood of that behavior occurring. -Adding something bad or taking away something good.