GROUND n.
es, Mexico, etc. They live chiefly on the ground. -- Ground fish (Zoöl.), any fish which constantly lives on the botton of the sea, as the sole, turbot, halibut. -- Ground floor, the floor of a house most nearly on a level with the ground; -- called also in America, but not in England, the first floor. -- Ground for…
MODULUS n.
k done upon a machine by the moving power, and that yielded at the working points, either constantly, if its motion be uniform, or in the interval of time which it occupies in passing from any given velocity to the same velocity again, if its motion be variable; -- called also the efficiency of the machine. Mosley. Ran…
WAGTAIL n.
to Motacilla and several allied genera of the family Motacillidæ. They have the habit of constantly jerking their long tails up and down, whence the name. Field wagtail, any one of several species of wagtails of the genus Budytes having the tail shorter, the legs longer, and the hind claw longer and straighter, than d…