Variant: or ep-
Function: prefix
Etymology: Latin, from Greek, from epi on, at, besides, after; akin to Old English eof ot crime
1 : upon < epi phyte> : besides < epi phenomenon> : attached to < epi didymis> : over < epi center> : outer < epi blast> : after < epi genesis>
2 a : chemical entity related to (such) another < epi mer> b : chemical entity distinguished from (such) another by having a bridge connection < epi chlorohydrin>