lip eroticism the use of the lips to obtain sexual arousal...
echinacea n. an herbal agent derived from any of nine relat...
action unit the simplest facial movement used as a code in...
Viennese School a group of early 20th-century practitioners...
normal science a science at the stage of development when i...
Sorry, "excitatory-gradient-excitation-gradient" is not in the Dictionary of Psy...