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A variety of pyroxene, usually of a black or dark green color, occurring in igneous rocks, such as basalt; -- also used instead of the general term pyroxene.

Pertaining to, or like, augite; containing augite as a principal constituent; as, augitic rocks.

drous carbonate of copper and zinc, found in pale green or blue crystalline aggregations. It yields a kind of brass on reduction.

Having lobes like the ear; auriculate.

Severity of manners or life; extreme rigor or strictness; harsh discipline. The austerity of John the Baptist. Milton.

The quality of being authentic or of established authority for truth and correctness.

Having, or proceeding from, due authority; entitled to obedience, credit, or acceptance; determinate; commanding. The sacred functions of authoritative teaching. Barrow.

on in virtue of his office or trust; dominion; jurisdiction; authorization; as, the authority of a prince over subjects, and of parents over children; the authority of a court. Thus can the demigod, Authority, Make us pay down for our offense. Shak. By what authority doest thou these things Matt. xxi. 23.…

Automatic stability; also, inherent stability. An aëroplane is inherently stable if it keeps in steady poise by virtue of its shape and proportions alone; it is automatically stable if it keeps in steady poise by means of self-operative mechanism.

A lemon-yellow phosphate of uranium and calcium occurring in tabular crystals with basal cleavage, and in micalike scales. H., 2- 2.5. Sp. gr., 3.05-3.19.

The quality of being available; availableness.

Greediness; strong appetite; eagerness; intenseness of desire; as, to eat with avidity. His books were received and read with avidity. Milward.

To wait on, serve, or attend. [Obs.]

A borosilicate of alumina, iron, and lime, commonly found in glassy, brown crystals with acute edges.

A salt formed by the combination of azotous, or nitrous, acid with a base; a nitrite. [R.]

Blue carbonate of copper; blue malachite.

One who administered the Eucharist with unleavened bread; -- a name of reproach given by those of the Greek church to the Latins.

A worshiper of Baal; a devotee of any false religion; an idolater.

To line with Babbitt metal.

A soft white alloy of variable composition (as a nine parts of tin to one of copper, or of fifty parts of tin to five of antimony and one of copper) used in bearings to diminish friction.