DEMI-CANNON, noun A cannon of different sizes; the lowest carries a ball of thirty pounds weight, and six inches diameter; the ordinary is twelve feet long, and carries a shot of six inches and one-sixth diameter, and thirty two pounds weight; that of the greatest size is twelve feet long, and carries a ball of six inches and five eighths diameter, and thirty six pounds weight.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI