VENTRO- n.
cate connection with, or relation to, the abdomen; also, connection with, relation to, or direction toward, the ventral side; as, ventrolateral; ventro- inguinal.
VIRTUAL a.
number of forces holding a material system in equilibrium, it is the projection, upon the direction of the force, of a line joining its point of application with a new position of that point indefinitely near to the first, to which the point is conceived to have been moved, without disturbing the equilibrium of the sys…
VIS n.
-- Vis impressa Etym: [L.] (Mech.), force exerted, as in moving a body, or changing the direction of its motion; impressed force. -- Vis inertiæ. Etym: [L.] (a) The resistance of matter, as when a body at rest is set in motion, or a body in motion is brought to rest, or has its motion changed, either in direction or…
VISION n.
e under Yellow); also, vision by means of rays which are not deviated from their original direction. -- Field of vision, field of view. See under Field. -- Indirect vision (Opt.), vision when the rays of light from an object fall upon the peripheral parts of the retina. -- Reflected vision, or Refracted vision, visi…
VITAL a.
rve force (neurism), growth force (bathmism), and thought force (phrenism), all under the direction and control of the vital principle. Apart from the phenomena of consciousness, vital actions no longer need to be considered as of a mysterious and unfathomable character, nor vital force as anything other than a form of…
WANDERING n.
a morbid condition in which one kidney, or, rarely, both kidneys, can be moved in certain directions; -- called also floating kidney, movable kidney. -- Wandering liver (Med.), a morbid condition of the liver, similar to wandering kidney. -- Wandering mouse (Zoöl.), the whitefooted, or deer, mouse. See Illust. of Mou…
WEATHER MAP n.
ter, the temperature of the air, the relative humidity, the state of the weather, and the direction and velocity of the wind. Isobars and isotherms outline the general distribution of temperature and pressure, while shaded areas indicate the sections over which rain has just fallen. Other lines inclose areas where the…