PROTRUDE Meaning of PROTRUDE in English ■ verb extend beyond or above a surface. ↘(of an animal) cause (a body part) to do this.OriginC17: from L. ~re , from pro- 'forward, out' + trudere 'to thrust'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004