Grenade, in the art of war, a hollow ball or shell of iron or other metal, of about 2½ inches diameter, which being filled with fine powder, is set on fire by means of a small fuse driven into the fuse-hole, made of well-seasoned beech-wood, and thrown by the grenadiers into those places where the men stand thick, particularly into the trenches and other lodgments made by the enemy. As soon as the composition within the fuse gets to the powder in the granado, it bursts into many pieces, greatly to the damage of all who happen to be in its way. Granadoes were invented about the year 1594. The author of the Military Dictionary has the following remark on the use of granadoes. "Grenades have unaccountably sunk into disuse; but I am persuaded there is nothing more proper than to have grenades to throw among the enemy who have jumped into the ditch. During the siege of Cassel under the count de la Lippe, in the campaign of 1762, a young engineer undertook..." Granado undertook to carry one of the outworks with a much smaller detachment than one which had been repulsed, and succeeded with ease from the use of grenades; which is a proof that they should not be neglected, either in the attack or defence of posts."—The word Granado takes its rise from hence, that the shell is filled with grains of powder, as a pomegranate is with kernels.