A pincer or claw-like appendage of arthropods, especially scorpions and crustaceans.
From Greek 'chele' (χήλη) meaning 'claw.' The word entered scientific terminology through Latin and is used in modern anatomy and zoology.
The word 'chela' comes from ancient Greek, but modern scientists still use it to describe the pincer claws of lobsters, crabs, and scorpions—it's one of the oldest words in your biology textbook!
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