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nly occurring in small glassy crystals, also a constituent of some igneous rocks. It is a lime feldspar. See Feldspar.

A granular igneous rock composed almost exclusively of a soda- lime feldspar, usually labradorite.

A hydrocarbon, C6H4.C2O2.C6H4, subliming in shining yellow needles. It is obtained by oxidation of anthracene.

The science of man; -- sometimes used in a limited sense to mean the study of man as an object of natural history, or as an animal.

That part of the fore limb between the brachium and the carpus; the forearm.

In general, anything very old; but in a more limited sense, a relic or object of ancient art; collectively, the antique, the remains of ancient art, as busts, statues, paintings, and vases. Misshapen monuments and maimed antiques. Byron.

The posterior opening of the alimentary canal, through which the excrements are expelled.

Native phosphate of lime, occurring usually in six-sided prisms, color often pale green, transparent or translucent.

External clothing; vesture; garments; dress; garb; external habiliments or array. Fresh in his new apparel, proud and young. Denham. At public devotion his resigned carriage made religion appear in the natural apparel of simplicity. Tatler.

A subordinate or subsidiary part or organ; an external organ or limb, esp. of the articulates. Antennæ and other appendages used for feeling. Carpenter.

pplying or laying on, in a literal sense; as, the application of emollients to a diseased limb.

To direct, designate, or limit; to make or direct a new disposition of, by virtue of a power contained in a conveyance; -- said of an estate already conveyed. Burrill. Kent. To appoint one's self, to resolve. [Obs.] Crowley.

A support or supporter; a stay; a prop. [Obs.] If a be to climb trees that are of any great height, there would be stays and appuies set to it. Holland. Point d'appui. Etym: [F., a point of support.] (Mil.) (a) A given point or body, upon which troops are formed, or by which are marched in line or column. (b) An advant…

ubstance by steeping it in water. -- Aqueous humor (Anat.), one the humors of the eye; a limpid fluid, occupying the space between the crystalline lens and the cornea. (See Eye.) -- Aqueous rocks (Geol.), those which are deposited from water and lie in strata, as opposed to volcanic rocks, which are of igneous origin;…

A mineral identical in composition with calcite or carbonate of lime, but differing from it in its crystalline form and some of its physical characters.

ermining, or ordaining, without control; one whose power of deciding and governing is not limited. For Jove is arbiter of both to man. Cowper.

Steep and lofty, in a literal sense; hard to climb. Those arduous pats they trod. Pope.

he areca nut, or betel nut, which is chewed in India with the leaf of the Piper Betle and lime.

of sand; of the nature of sand; easily disintegrating into sand; friable; as, arenaceous limestone.

A siliceous variety of calcite, or carbonate of lime, having a silvery-white, pearly luster, and a waving or curved lamellar structure.