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A hydrous chloride of calcium and magnesium occurring in yellowish masses which rapidly deliquesce upon exposure. It is found in the salt mines at Stassfurt.

A salt of tellurous acid.

An igneous rock consisting essentially of plagioclase and either leucite or nephelite, or both.

A sulphide of antimony and copper, with small quantities of other metals. It is a very common ore of copper, and some varieties yield a considerable presentage of silver. Called also gray copper ore, fahlore, and panabase.

A mineral of a brown to black color, or, as in the variety orangite, orange-yellow. It is essentially a silicate of thorium.

mmon; used until so common as to have lost novelty and interest; hackneyed; stale; as, a trite remark; a trite subject. -- Trite"ly, adv. -- Trite"ness, n.

Three times ternate; -- applied to a leaf whose petiole separates into three branches, each of which divides into three parts which each bear three leafiets.

Any fossil coral of the genus Syringopora consisting of a cluster of upright tubes united together by small transverse tubules.

A variety of monazite.

Any spiral marine gastropod belonging to Turritella and allied genera. These mollusks have an elongated, turreted shell, composed of many whorls. They have a rounded aperture, and a horny multispiral operculum.

Of, pertaining to, or resembling, the turritellas.

To write with a typewriter. [Recent]

An instrument for writing by means of type, a typewheel, or the like, in which the operator makes use of a sort of keyboard, in order to obtain printed impressions of the characters upon paper.

To write under something else; to subscribe. What addition and change I have made I have here underwritten. Bp. Sanderson.

One who underwrites his name to the conditions of an insurance policy, especially of a marine policy; an insurer.

To cancel, as what is written; to erase. Milton.

One of the segments of the abdomen or post-abdomen of arthropods.

An explosive containing nitroglycerin. It is used in blasting.

A kind of glass which is very hard and difficult to fuse, used as an insulator in electrical lamps and other apparatus.

A fluophosphate of magnesia, occurring in yellowish crystals, and also in massive forms.