ELONGATE Meaning of ELONGATE in English v. & adj.v. 1 tr. lengthen, prolong. 2 intr. Bot. be of slender or tapering form.adj. Bot. & Zool. long in proportion to width. [ LL elongare (as E-, L longus long) ] Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012