[pan-] comb form [Gk, fr. pan, neut. of pant-, pas all, every; akin to Toch B pont- all] 1: all: completely "panchromatic"
2. a: involving all of a (specified) group "Pan-American" b: advocating or involving the union of a (specified) group "Pan-Slavism"
3: whole: general "panleukopenia"