One of the mysteries of the English language finally explained.
Of a limb or other appendage of a crustacean: partially chelate; specifically (in later use) bearing a subchela. Also (of a pincer): that forms, or functions as, a subchela.
Early 19th century; earliest use found in Transactions of the Linnean Society of London. From sub- + chelate. In later use partly after subchela.
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