CAMERA OBSCURA n. 2 definitions
in which the images of extermal objects, formed by a convex lens or a concave mirror, are thrown on a paper or other white surface placed in the focus of the lens or mirror within a darkened chamber, or box, so that the oulines may be traced.
CANNONADE n.
The act of discharging cannon and throwing ball, shell, etc., for the purpose of destroying an army, or battering a town, ship, or fort; -- usually, an attack of some continuance. A furious cannonade was kept up from the whole circle of batteries on the devoted towm. Prescott.
CARRONADE n.
A kind of short cannon, formerly in use, designed to throw a large projectile with small velocity, used for the purpose of breaking or smashing in, rather than piercing, the object aimed at, as the side of a ship. It has no trunnions, but is supported on its carriage by a bolt passing through a loop on its under side.…