Wordnet 3.0
NOUN (2)
1.
a heavy cannon with a long barrel used in the 16th and 17th centuries;
2.
a medieval musket;
The Collaborative International Dictionary of English v.0.48:
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.
[1913 Webster]
Trump, and drum, and roaring culverin. --Macaulay.
[1913 Webster]
WordNet (r) 3.0 (2006):
culverin
n 1: a heavy cannon with a long barrel used in the 16th and 17th
centuries
2: a medieval musket