SIS 1. abbreviation for sensory-information store. See sens...
atavism n. 1. the presence of a genetic trait i...
SADS abbreviation for Schedule for Affective Disorders and...
fossil n. the remains or traces of an organism that lived i...
gray commissure a bundle of nerve fibers that surrounds the...
Sorry, "paragigantocellular-nucleus-pgn" is not in the Dictionary of Psychology....