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Having the pallium, or mantle, acting as a gill, as in brachiopods.

icts divided by pillars of extra size, into which a mine is laid off in one system of extracting coal.

A dramatic and spectacular entertainment of which dumb acting as well as burlesque dialogue, music, and dancing by Clown, Harlequin, etc., are features.

To refrain from exacting as a penalty. I pardon thee thy life before thou ask it. Shak.

Acting in common; participating. [R.] Shak.

To make a short stop; to cease for a time; to intermit speaking or acting; to stop; to wait; to rest. "Tarry, pause a day or two." Shak. Pausing while, thus to herself she mused. Milton.

Hawking; acting as a peddler.

Enacting or threatening punishment; as, a penal statue; the penal code.

ng, by revolution, at a stated time; returning regularly, after a certain period of time; acting, happening, or appearing, at fixed intervals; recurring; as, periodical epidemics. The periodic return of a plant's flowering. Henslow. To influence opinion through the periodical press. Courthope.

A large stone reaching through a wall so as to appear on both sides of it, and acting as a binder; -- called also perbend, perpend stone, and perpent stone.

. "The king himself in person is set forth." Shak. -- In the person of, in the place of; acting for. Shak.

Acting by the operation of both light and electricity; -- said of apparatus for producing pictures by electric light.

that branch of science which treats of the laws and properties of matter, and the forces acting upon it; especially, that department of natural science which treats of the causes (as gravitation, heat, light, magnetism, electricity, etc.) that modify the general properties of bodies; natural philosophy.…

A lever having a projection at one end, acting as a fulcrum, -- used chiefly to roll heavy wheels, etc. Called also pinch bar. At a pinch, On a pinch, in an emergency; as, he could on a pinch read a little Latin.

in music action; as, to play a comedy; also, to act in the character of; to represent by acting; to simulate; to behave like; as, to play King Lear; to play the woman. Thou canst play the rational if thou wilt. Sir W. Scott.

for water, having a plunger, instead of a piston, to act upon the water. It may be single-acting or double- acting

the point of something, as of a finger, for the purpose of designating an object, and attracting attention to it; -- with at. Now must the world point at poor Katharine. Shak. Point at the tattered coat and ragged shoe. Dryden.

is usually a reflecting plate, or a plate of some crystal, as tourmaline, or a doubly refracting crystal.

he sides of which, taken successively, represent, in length and direction, several forces acting simultaneously upon one point, so that the side necessary to complete the figure represents the resultant of those forces. Cf. Parallelogram of forces, under Parallelogram.

ve, and said of metals, bases, and basic radicals. Positive crystals (Opt.), a doubly refracting crystal in which the index of refraction for the extraordinary ray is greater than for the ordinary ray, and the former is refracted nearer to the axis than the latter, as quartz and ice; -- opposed to negative crystal, or…