the state of being hooked or curved inward; the quality of having a hook-like shape.
From Latin 'adunatus' (hooked, united) derived from 'ad-' (to) and 'unatus' (hooked). The suffix '-tion' forms a noun from the Latin adjective.
In zoology, 'adunation' describes talons, beaks, and claws that curve inward—this specialized term lets scientists precisely describe how predator anatomy works without getting tangled up in awkward phrases.
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