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A genus of pearly bivalve shells, numerous extinct species of which are characteristic of the Mesozoic rocks. A few living species exist on the coast of Australia.

Having horns with three angles, like those of some species of goats.

See Trituberculy.

Of or pertaining to trigonometry; performed by the rules of trigonometry. --Trig`o*no*met"ric*al*ly, adv. Trigonometrical curve, a curve one of whose coördinates is a trigonometric function of the other. -- Trigonometrical function. See under Function. -- Trigonometrical lines, lines which are employed in solving the…

ven parts other required parts, and also of the general relations which exist between the trigonometrical functions of arcs or angles.

Same as Trigonal.

Same as Trigraph.

Containing three letters or characters, or three sets of letters or characters.

Same as Trigrammatic.

Three letters united in pronunciation so as to have but one sound, or to form but one syllable, as -ieu in adieu; a triphthong.

Any one of the Trigynia.

A Linnæan order of plants having three pistils or styles.

Having three pistils or styles; of or pertaining to the Trigynia.

A rubbing or chafing of the skin; especially, an abrasion or excoriation of the skin between folds, as in fat or neglected children.

A female intriguer.

ed to effect some purpose by secret artifice; conspiracy; stratagem. Busy meddlers with intrigues of state. Pomfret.

One who intrigues.

Arts or practice of intrigue.

By means of, or in the manner of, intrigue.

A kind of intercolumniation in an entablature, in which only one triglyph and two metopes are introduced.