- made from a curled-up position with the arms pressing the knees against one's chest: a cannonball dive.
- moving at great speed: a train known as a cannonball express.
Origin of cannonball
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cannon-ball
In the act of presenting it, the lieutenant was carried off by a cannon-ball.
How can a thought in the brain of man contract a set of muscles and lift a cannon-ball?The Shadow World
One of the towers had been knocked off, probably by a cannon-ball.A Jolly Fellowship
Frank R. Stockton
Let us now fix our attention for a moment on the gunpowder which urges the cannon-ball.Fragments of science, V. 1-2
For certainly he could have used a ball at one end—a cannon-ball—and a mortar at the other.Waiting for Daylight
Henry Major Tomlinson
- a projectile fired from a cannon: usually a solid round metal shot
- a very fast low serve
- (as modifier)a cannonball serve
- a jump into water by a person who has his arms tucked into the body to form a ball
- (often foll by along, etc) to rush along, like a cannonball
- to execute a cannonball jump
- very fast or powerful
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for cannon-ball
Online Etymology Dictionary, © 2010 Douglas Harper