isotretinoin n. an analog of vitamin A used in the treatmen...
LSD 1. lysergic acid diethylamide: a highly potent hallucin...
group mind a hypothetical explanation for the apparent unif...
stylus maze a maze that is “run” by moving a stylus through...
foreground–background n. in perception, the distinction bet...
natural law 1. in science and natural philosophy, a fundame...