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an organic acid, C3O3N3H3, first obtained by heating uric acid or urea, and called pyrouric acid; afterwards obtained from isocyanic acid. It is a white crystalline substance, odorless and almost tasteless; -- called also tricarbimide.

Capable of being decided; determinable.

To cut off; to separate. [Obs.] Our seat denies us traffic here; The sea, too near, decides us from the rest. Fuller.

Free from ambiguity; unequivocal; unmistakable; unquestionable; clear; evident; as, a decided advantage. "A more decided taste for science." Prescott.

In a decided manner; indisputably; clearly; thoroughly.

Means of forming a decision. [Obs.] Beau. & Fl.

A falling off. [R.] Sir T. Browne.

One who decides.

The inner layer of the wall of the uterus, which envelops the embryo, forms a part of the placenta, and is discharged with it.

A group of Mammalia in which a decidua is thrown off with, or after, the fetus, as in the human species.

Possessed of, or characterized by, a decidua.

Deciduousness. [R.]

ers, etc.; also, shedding leaves or parts at certain seasons, stages, or intervals; as, deciduous trees; the deciduous membrane.

The quality or state of being deciduous.

icularly, the putting to death of Jesus Christ. [R.] Earth profaned, yet blessed, with deicide. Prior.

Divalent; -- said of a base or radical as capable of saturating two acid monad radicals or a dibasic acid. Cf. Dibasic, a., and Biacid.

Clear; lucid. [Obs.] Bacon. -- Di*lu"cid*ly, adv. [Obs.] -- Di`lu*cid"i*ty, n. [Obs.]

To elucidate. [Obs.] Boyle.

The act of making clear. [Obs.] Boyle.

To free from acid.