n. (中世纪的)火枪, 重炮

Culverin \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.