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Formation of teeth; toothed form. [R.] How did it [a bill] get its barb, its dentation Paley.

A small tooth or projecting point.

Furnished with denticles; notched into little toothlike projections; as, a denticulate leaf of calyx. -- Den*tic"u*late*ly, adv.

A diminutive tooth; a denticle.

Having the form of a tooth or of teeth; tooth-shaped.

A powder or other substance to be used in cleaning the teeth; tooth powder.

Bearing teeth or toothlike structures.

Toothed.

A small tooth, like that of a saw.

Having a toothed bill; -- applied to a group of passerine birds, having the bill notched, and feeding chiefly on insects, as the shrikes and vireos. See Illust. (N) under Beak.

Shaped like a tooth; tooth-shaped.

An artificial tooth, block, or set of teeth.

A pair of toothed wheels which work together. [R.]

d by the difference of their effect upon the needle. -- Differential gearing, a train of toothed wheels, usually an epicyclic train, so arranged as to constitute a differential motion. -- Differential motion, a mechanism in which a simple differential combination produces such a change of motion or force as would, wi…

A genus of Monotremata found in Australia, Tasmania, and New Guinea. They are toothless and covered with spines; -- called also porcupine ant-eater, and Australian ant-eater.

Toothless.

. (b) A genus (Elephantopus) of coarse, composite weeds. -- Elephant's tusk (Zoöl.), the tooth shell. See Dentalium.

Having the edge worn away so as to be jagged or irregularly toothed.

Jagged or irregularly toothed, as if nibbled out or gnawed. -- E*rose"ly, adv.

the latter the impulse by which it is kept in vibration; -- so called because it allows a tooth to escape from a pallet at each vibration.