pathognomonic adj. describing a sign, symptom, or a group o...
principle n. 1. a fundamental rule, standard, o...
retinal cone any of various photoreceptors in the retina th...
Sorry, "premenstrual-syndrome-pms" is not in the Dictionary of Psychology. Pleas...
mediational learning a form of learning that involves the u...
median lethal dose see lethal dose.