- a large cannon of the 16th century, having a bore of about 6½ inches (17 cm) and firing a shot of from 30 to 36 pounds (14 to 16 kg).
Origin of demi-cannon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for demi-cannon
One demi-cannon cast in Manila, old style, caliber sixteen libras, length twenty-two calibers.
One demi-cannon, old casting of Manila, caliber sixteen libras, length twenty-two calibers.
The number of cannons royal, and even of demi-cannon, in the English navy was not great.A Short History of the Royal Navy 1217 to 1688
The Revenge mounted forty "great ordnance" of brass, including cannon-royal, demi-cannon, and culverins for firing a broadside.The Golden Galleon
Upon every bulwark is mounted one demi-cannon, besides other great guns; in other places are smaller pieces.A Journal of the Swedish Embassy in the Years 1653 and 1654, Vol II.