VALVE n.
A lid, plug, or cover, applied to an aperture so that by its movement, as by swinging, lifting and falling, sliding, turning, or the like, it will open or close the aperture to permit or prevent passage, as of a fluid.
VOLUNTARY a.
ubject to, or regulated by, the will; as, the voluntary motions of an animal, such as the movements of the leg or arm (in distinction from involuntary motions, such as the movements of the heart); the voluntary muscle fibers, which are the agents in voluntary motion.
WANDERING n.
s. -- Wandering cell (Physiol.), an animal cell which possesses the power of spontaneous movement, as one of the white corpuscles of the blood. -- Wandering Jew (Bot.), any one of several creeping species of Tradescantia, which have alternate, pointed leaves, and a soft, herbaceous stem which roots freely at the join…
WEASEL n.
and ferret. They have a slender, elongated body, and are noted for the quickness of their movements and for their bloodthirsty habit in destroying poultry, rats, etc. The ermine and some other species are brown in summer, and turn white in winter; others are brown at all seasons. Malacca weasel, the rasse. -- Weasel c…