An ungual (from Latin unguis, i.e. nail) is a highly modified distal toe bone which ends in a hoof, claw, or nail. Elephants and ungulates have ungual phalanges, as did the sauropods and horned dinosaurs. A claw is a highly modified ungual phalanx.
![](https://upload.wikimedia.org/wikipedia/commons/thumb/e/ea/Eremotherium_laurillardi_claw.jpg/220px-Eremotherium_laurillardi_claw.jpg)
As an adjective, ungual means related to nail, as in periungual (around the nail).[1]
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