Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Either of the first pair of fanglike appendages near the mouth of an arachnid, such as a spider, often modified for grasping and piercing.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. One of the prehensile claws found on the proboscises of chelicerates (spiders and scorpions).

from the GNU version of the Collaborative International Dictionary of English

  • n. 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.

from The Century Dictionary and Cyclopedia

  • n. One of the anterior pair of appendages of a scorpion; a short, three-jointed organ ending in a prehensile claw. See cut under scorpion.
  • n. The corresponding organ in a spider, which terminates in a sharp joint folding down on the preceding one like the blade of a pocket-knife on the handle, and having at its extremity the opening of a poison-gland.
  • n. Also in English form chelicere.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. either of the first pair of fang-like appendages near the mouth of an arachnid; often modified for grasping and piercing

Etymologies

New Latin : chela + Greek keras, horn; see ker-1 in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
New Latin, from Ancient Greek χηλή (khēlē, "jawbone") + κέρας (keras, "horn") (Wiktionary)

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