condyle

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condyle (noun; Greek kondylos, knuckle): 1. A knoblike process that forms the fulcrum for joint movement.

2. (Arthropoda) The surfaces between arthropod joints, that provide the fulcra on which the joints move.

3. (Bryozoa: Gymnolaemata) In some cheilostomates, one of a pair of bilateral skeletal protruberances on which the operculum of an autozooid or mandible of an avicularium is hinged; in asymmetrical avicularia can be single.

4. (Mollusca: Bivalvia) An enlarged prominent end of a shell.