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tangency and a given straight line is constant; -- so called because it was conceived as described by the motion of one end of a tangent line as the other end was drawn along the given line.

Hence, to overpass, as any prescribed as the For man will hearken to his glozing lies, And easily transgress the sole command. Milton.

The curve described by any point in a wheel rolling on a line; a cycloid; a roulette; in general, the curve described by any point fixedly connected with a moving curve while the moving curve rolls without slipping on a second fixed curve, the curves all being in one plane. Cycloids, epicycloids, hypocycloids, cardioid…

Italy; -- specifically designating one of the five orders of architecture recognized and described by the Italian writers of the 16th century, or characteristic of the order. The original of this order was not used by the Greeks, but by the Romans under the Empire. See Order, and Illust. of Capital.…

f double curvature. See Plane curve, under Curve. -- Twisted surface (Geom.), a surface described by a straight line moving according to any law whatever, yet so that the consecutive positions of the line shall not be in one plane; a warped surface.

to do in his uniform. F. W. Robertson. In full uniform (Mil.), wearing the whole of the prescribed uniform, with ornaments, badges of rank, sash, side arms, etc. -- Uniform sword, an officer's sword of the regulation pattern prescribed for the army or navy.

Not speakable; incapable of being uttered or adequately described; inexpressible; unutterable; ineffable; as, unspeakable grief or rage. -- Un*speak"a*bly, adv. Ye rejoice with joy unspeakable and full of glory. 1 Pet. i. 8.

the title or right to property by the uninterrupted possession of it for a certain term prescribed by law; -- the same as prescription in common law.

A vessel similar to that described in the first definition above, or the representation of one in a solid block of stone, or the like, used for an ornament, as on a terrace or in a garden. See Illust. of Niche.

only one. -- Uniform velocity, velocity in which the same number of units of space are described in each successive unit of time. -- Variable velocity, velocity in which the space described varies from instant, either increasing or decreasing; -- in the former case called accelerated velocity, in the latter, retarde…

ng on etched meteoric iron; -- so called after A. B. Widmanstätten, of Vienna, who first described them in

A certain curve of the third order, described by Maria Agnesi under the name versiera.

Discovered, or first described, by Caspar Friedrich Wolff (1733-1794), the founder of modern embryology. Wolffian body, the mesonephros. -- Wolffian duct, the duct from the Wolffian body.

Discovered or described by Olanus Wormius, a Danish anatomist. Wormian bones, small irregular plates of bone often interposed in the sutures between the large cranial bones.

nted to persons imprisoned for debt, of walking in the yard, or within any other limits prescribed by law, on their giving bond not to go beyond those limits. -- Prison yard, an inclosure about a prison, or attached to it. -- Yard grass (Bot.), a low-growing grass (Eleusine Indica) having digitate spikes. It is commo…