Chelidonic acid, a weak acid extracted from the celandine as a white crystalline substance.

(||Chel`i*do"ni*us) n. [L. (sc. lapillus.)] A small stone taken from the gizzard of a young swallow. — anciently worn as a medicinal charm.

(Chel"i*fer) n. [Gr. chhlh` claw + -fer.] (Zoöl.) See Book scorpion, under Book.

(Che*lif"er*ous) a. [Gr. chhlh` claw + -ferous.] (Zoöl.) Having cheliform claws, like a crab.

(Chel"i*form) a. [Gr. chhlh` claw + -form.] (Zoöl.) Having a movable joint or finger closing against a preceding joint or a projecting part of it, so that the whole may be used for grasping, as the claw of a crab; pincherlike.

(||Che*lo"ne) n. [Gr. chelw`nh a tortoise. So named from shape of the upper lip of the corolla.] (Bot.) A genus of hardy perennial flowering plants, of the order Scrophulariaceæ, natives of North America; — called also snakehead, turtlehead, shellflower, etc.

(||Che*lo"ni*a) n. pl. [NL., fr. Gr. chelw`nh a tortoise.] (Zoöl.) An order of reptiles, including the tortoises and turtles, peculiar in having a part of the vertebræ, ribs, and sternum united with the dermal plates so as to form a firm shell. The jaws are covered by a horny beak. See Reptilia; also, Illust. in Appendix.

(Che*lo"ni*an) a. (Zoöl.) Of or pertaining to animals of the tortoise kind.n. One of the Chelonia.

(||Che*lu"ra) n. [NL., fr. Gr. chhlh` claw + tail.] (Zoöl.) A genus of marine amphipod crustacea, which bore into and sometimes destroy timber.

(Che"ly) n. A claw. See Chela. [Obs.]

(Chem"ic) n. [See Chenistry.]

1. A chemist; an alchemist. [Obs.]

2. (Bleaching) A solution of chloride of lime.

(Chek`e*la*toun") n. See Ciclatoun. [Obs.] Chaucer.

(||Chek"mak) n. A turkish fabric of silk and cotton, with gold thread interwoven.

(||Che"la) n.; pl. Chelæ [NL., fr. Gr. chhlh` claw.] (Zoöl.) The pincherlike claw of Crustacea and Arachnida.

(Che"late) a. (Zoöl.) Same as Cheliferous.

(Chel`e*ryth"rine) n. [Gr. celandine + 'eryqro`s red.] (Chem.) An alkaloidal principle obtained from the celandine, and named from the red color of its salts. It is a colorless crystalline substance, and acts as an acrid narcotic poison. It is identical with sanguinarine.

(||Che*lic"e*ra) n.; pl. Cheliceræ [NL., fr. Gr. chhlh` claw + ke`ras horn.] (Zoöl.) One of the anterior pair of mouth organs, terminated by a pincherlike claw, in scorpions and allied Arachnida. They are homologous with the falcers of spiders, and probably with the mandibles of insects.

(Chel"i*don) n. [NL., fr. Gr. chelidw`n.] (Anat.) The hollow at the flexure of the arm.

(Chel`i*don"ic) a. [See Celandine.] (Chem.) Of, pertaining to, or derived from, the celandine.

  By PanEris using Melati.

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