round shot

Noun

 * 1)  A solid, usually iron, spherical projectile fired from a smoothbore cannon.
 * Just then, with a roar and a whistle, a round-shot passed high above the roof of the log-house and plumped far beyond us in the wood. Treasure Island (1883), Robert Louis Stevenson

Synonyms

 * cannonball/cannon ball, solid shot

Coordinate terms

 * grapeshot