chela

chela (noun; plural chelae; Greek chele, claw): 1. (Arthropoda) A lateral movable claw on a limb: pincerlike, with opposed movable and immovable fingers; occasionally both fingers move.

2. (Arthropoda: Insecta) Has been applied to feet of some Anoplura in which the opposable claw performs a holdfast function

See also: claw. 3. (Porifera) A type of microsclere with a short, straight or curved axis and recurved teeth at both ends.