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Having no hard and sharp projections, as spines, prickles, spurs, claws, etc.

ling question; to undo a riddle. Tennyson. Pray you, undo this button. Shak. She took the spindle, and undoing the thread gradually, measured it. Sir W. Scott.

Unicorn shell (Zoöl.), any one of several species of marine gastropods having a prominent spine on the lip of the shell. Most of them belong to the genera Monoceros and Leucozonia.

. [Obs.] " He lay upright." Chaucer. Upright drill (Mach.), a drilling machine having the spindle vertical.

one of its parts; hemal; abdominal; as, the ventral fin of a fish; the ventral root of a spinal nerve; -- opposed to Ant: dorsal.

-- Venus's comb. (a) (Bot.) Same as Lady's comb. (b) (Zoöl.) A species of Murex (M. tenuispinus). It has a long, tubular canal, with a row of long, slender spines along both of its borders, and rows of similar spines covering the body of the shell. Called also Venus's shell. -- Venus's fan (Zoöl.), a common reticulat…

The spindle of a watch balance, especially one with pallets, as in the old vertical escapement. See under Escapement.

One of the serial segments of the spinal column.

Of or pertaining to a vertebræ, or the vertebral column; spinal; rachidian.

Having a backbone, or vertebral column, containing the spinal marrow, as man, quadrupeds, birds, amphibia, and fishes.

ar column (Anat.), a series of nerve cells forming one of the tracts distinguished in the spinal; -- also called the ganglionic column. -- Vesicular emphysema (Med.), emphysema of the lungs, in which the air vesicles are distended and their walls ruptured. -- Vesicular murmur (Med.), the sound, audible on auscultatio…

One of the movable, slender, spinelike organs or parts with which certain bryozoans are furnished. They are regarded as specially modified zooids, of nearly the same nature as Avicularia.

bolt for a crossbow having feathers or brass placed at an angle with the shaft to make it spin in flying.

An instrument somewhat resembling the spinet, but having a rectangular form, like the small piano. It had strings and keys, but only one wire to a note. The instrument was used in the sixteenth century, but is now wholly obsolete. It was sometimes called a pair of virginals.

ebrate, which contains the alimentary canal, as distinguished from the dorsal, or cerebro-spinal, canal. -- Visceral clefts (Anat.), transverse clefts on the sides just back of the mouth in the vertebrate embryo, which open into the pharyngeal portion of the alimentary canal, and correspond to the branchial clefts in…

ng penny, money, varying according to the length of the thread, paid to the weaver by the spinner on laying the warp. [Prov. Eng.] Wright. -- Warping post, a strong post used in warping rope-yarn.

brine snakes of the genus Acrochordus, having the body covered with wartlike tubercles or spinose scales, and lacking cephalic plates and ventral scutes. -- Wart spurge (Bot.), a kind of wartwort (Euphorbia Helioscopia).

A name given to the first power spinning machine, because driven by water power.

which the spider carries down in the form of small bubbles attached one at a time to the spinnerets and hind feet. Called also diving spider.

rine fishes belonging to the genus Trachinus, of the family Trachinidæ. They have a broad spinose head, with the eyes looking upward. The long dorsal fin is supported by numerous strong, sharp spines which cause painful wounds.