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pin·cer(pĭn′sər) also pinch·er (pĭn′sər)
a. often pincers or pinchers A grasping tool having two parts hinged together to work in opposition.
b. One of the opposing parts in such a tool.
a. A claw resembling such a tool, as of a lobster or scorpion; a chela.
b. pincers or pinchers A pair of mandibles or other appendages used by certain arthropods for grasping, as the cerci of an earwig.
3. A military maneuver in which an enemy force is attacked from two flanks and the front.
[Middle English pinsours, pincers, from Anglo-Norman pynceour, from pincer, to pinch; see pinch.]