\Cul"ver*in\ (k?l"v?r-?n), n.[F. coulevrine, prop. fem. of couleuvrin like a serpent, fr. couleuvre adder, fr. L. coluber, colubra.] A long cannon of the 16th century, usually an 18-pounder with serpent-shaped handles. Trump, and drum, and roaring culverin. --Macaulay.