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Definition of Chelicera
1. Noun. Either of the first pair of fang-like appendages near the mouth of an arachnid; often modified for grasping and piercing.
Definition of Chelicera
1. 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.
Definition of Chelicera
1. [n CHELICERAE]
Medical Definition of Chelicera
1. One of the two anterior appendages of arachnids; in ticks and parasitic mites, the chelicerae are piercing and cutting structures, and constitute important feeding organs. Origin: G. Chele, claw, + keras, horn (05 Mar 2000)