LONGICORN Meaning of LONGICORN in English [ 'lɒn(d)ʒɪkɔ:n ]■ noun former term for longhorn beetle .OriginC19: from mod. L. ~is , from L. longus 'long' + cornu 'horn'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004