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t multiplies exceedingly, especially in cotton fields. -- Nut lock, a device, as a metal plate bent up at the corners, to prevent a nut from becoming unscrewed, as by jarring. -- Nut pine. (Bot.) See under Pine. -- Nut rush (Bot.), a genus of cyperaceous plants (Scleria) having a hard bony achene. Several species ar…

To march in a direction oblique to the line of the column or platoon; -- formerly accomplished by oblique steps, now by direct steps, the men half-facing either to the right or left.

t for obscurity designed. Dryden. They were now brought forth from obscurity, to be contemplated by artists with admiration and despair. Macaulay.

A plate which forms the back part of the head of insects.

To take in and retain; to absorb; -- said especially with respect to gases; as iron, platinum, and palladium occlude large volumes of hydrogen.

Occlusion of gases (Chem. & Physics), the phenomenon of absorbing gases, as exhibited by platinum, palladium, iron, or charcoal; thus, palladium absorbs, or occludes, nearly a thousand times its own volume of hydrogen, and in this case a chemical compound seems to be formed.

or ornament, or for use. "I have boots on." B. Gonson. He put on righteousness as a breastplate. Is. lix. 17.

Moving in a forward direction; tending toward a contemplated or desirable end; forward; as, an onward course, progress, etc.

One of the plates which in some Crustacea inclose a cavity wherein the eggs are hatched.

Any one of the bony plates which support the gill covers of fishes; an opercular bone.

The fold of integument, usually supported by bony plates, which protects the gills of most fishes and some amphibians; the gill cover; the gill lid.

The lowest deck of a vessel, esp. of a ship of war, consisting of a platform laid over the beams in the hold, on which the cables are coiled.

A camera for obtaining a circular panoramic view of the horizon. The photographic plate is placed horizontally with a vertical lens above. A mirror of peculiar shape reflects light from the entire horizon to the lens, by means of which it is focused upon the plate.

A rare metallic element of the platinum group, found native as an alloy in platinum ore, and in iridosmine. It is a hard, infusible, bluish or grayish white metal, and the heaviest substance known. Its tetroxide is used in histological experiments to stain tissues. Symbol Os. Atomic weight 191.1. Specific gravity 22.47…

A genus of plectognath fishes having the body covered with solid, immovable, bony plates. It includes the trunkfishes.

to subject (a plate or film) too long to the developing process.

to subject (a plate or film) too long to the actinic action of the light used in producing a picture. -- O`ver*ex*po"sure (#), n.

r of sea urchins found in the Paleozoic rocks. They had more than twenty vertical rows of plates. Called also Palæechini. [Written also Palæechinoidea.]

One of the plates covering the points of junction at the bend of the shoulders and elbows. Fairholt.

A rare metallic element of the light platinum group, found native, and also alloyed with platinum and gold. It is a silver-white metal resembling platinum, and like it permanent and untarnished in the air, but is more easily fusible. It is unique in its power of occluding hydrogen, which it does to the extent of nearly…