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An iron-black mineral of metallic luster, occurring in small orthorhombic crystals, also massive. It contains sulphur, arsenic, copper, and often silver.

To illumine; to enlighten. [R.] Which from the first has shone on ages past, Enlights the present, and shall warm the last. Pope.

A mineral of the pyroxene group, orthorhombic in crystallization; often fibrous and massive; color grayish white or greenish. It is a silicate of magnesia with some iron. Bronzite is a ferriferous variety.

ssage leading into a house or other building, or to a room; a vestibule; an adit, as of a mine. A straight, long entry to the temple led. Dryden.

against; as, an envious man, disposition, attack; envious tongues. My soul is envious of mine eye. Keble. Neither be thou envious at the wicked. Prov. xxiv. 19.

A yellow or brownish red dyestuff obtained by the action of bromine on fluoresceïn, and named from the fine rose-red which it imparts to silk. It is also used for making a fine red ink. Its solution is fluorescent.

A mineral, commonly of a yellowish green (pistachio) color, occurring granular, massive, columnar, and in monoclinic crystals. It is a silicate of alumina, lime, and oxide of iron, or manganese.

A crystallized, transparent mineral of the Zeolite family. It is a hydrous silicate of alumina and lime.

lphate of magnesia having cathartic qualities; -- originally prepared by boiling down the mineral waters at Epsom, England, -- whence the name; afterwards prepared from sea water; but now from certain minerals, as from siliceous hydrate of magnesia.

The act or condition of hanging in equipoise; not inclined or determined either way. South.

The degree of combining power as determined by relative weight. See Equivalent, n., 2. [R.]

y weight of an element which possesses the same chemical value as other elements, as determined by actual experiment and reference to the same standard. Specifically:

A rare metallic element associated with several other rare elements in the mineral gadolinite from Ytterby in Sweden. Symbol Er. Atomic weight 165.9. Its salts are rose-colored and give characteristic spectra. Its sesquioxide is called erbia.

See Ermine. Shenstone.

e. I have a secret errand to thee, O king. Judg. iii. 19. I will not eat till I have told mine errand. Gen. xxiv. 33. mission.

A rose-red mineral, crystallized and earthy, a hydrous arseniate of cobalt, known also as cobalt bloom; -- called also erythrin or erythrine.

A rare mineral, containing chiefly niobium, titanium, thorium, and cerium. It was so called by Berzelius on account of the inability of chemical science, at the time of its discovery, to separate some of its constituents.

An alkaloid found in the Calabar bean, and the seed of Physostigma venenosum; physostigmine. It is used in ophthalmic surgery for its effect in contracting the pupil.

To inspect narrowly; to examine and keep watch upon; to watch; to observe. He sends angels to espy us in all our ways. Jer. Taylor.

substance, as of a plant; highly rectified; pure; hence, unmixed; as, an essential oil. "Mine own essential horror." Ford.