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Having a crotch; forked.

A forked support; a crotch. The crotchets of their cot in columns rise. Dryden.

Marked or measured by crotchets; having musical notation. Harmar (1587).

The state or character of being crotchety, or whimsical. This belief in rightness is a kind of conscientiousness, and when it degenerates it becomes crotchetiness. J. Grote.

Given to crotchets; subject to whims; as, a crotchety man.

A genus of euphorbiaceous plants belonging to tropical countries. Croton oil (Med.), a viscid, acrid, brownish yellow oil obtained from the seeds of Croton Tiglium, a small tree of the East Indies. It is a most powerful drastic cathartic, and is used externally as a pustulant.

A small, active, winged species of cockroach (Ectobia Germanica), the water bug. It is common aboard ships, and in houses in cities, esp. in those with hot-water pipes.

Of or pertaining to, or derived from, a plant of the genus Croton, or from croton oil. Crotonic acid (Chem.), a white crystalline organic acid, C3H5.CO2H, of the ethylene, or acrylic acid series. It was so named because formerly supposed to exist in croton oil. Also, any acid metameric with crotonic acid proper.…

A supposed alkaloid obtained from croton oil by boiling it with water and magnesia, since found to be merely a magnesia soap of the oil. Watts.

ly, and regarded as an unsaturated hydrocarbon of the acetylene series, and analogous to crotonic acid.

A name given to various lichens gathered for dyeing. [Scot.]

nt gill openings, but no external gills; -- called also Cryptobranchiata. [Written also Derotrema.]

The horny covering of the end of the bill of birds.

To rot, as flax or hemp, by exposure to rain, dew, and sun. See Dewretting.

See Dextrotatory.

esp., turning the plane of polarization of luminous rays toward the right hand; as, dextrorotatory crystals, sugars, etc. Cf. Levorotatory.

Dicrotic.

Of or pertaining to dicrotism; as, a dicrotic pulse.

A condition in which there are two beats or waves of the arterial pulse to each beat of the heart.

An extinct Quaternary marsupial from Australia, about as large as the hippopotamus; -- so named because of its two large front teeth. See Illustration in Appendix.