Relating to or belonging to the order Brachyura; having the characteristics of crabs with short, tucked tails.
From 'brachyura' + '-al' (relating to), forming the adjectival version describing anything pertaining to crabs or their order.
Every adjective form teaches you something—saying 'brachyural characteristics' saves a scientist from saying 'characteristics of the short-tailed crustacean order' over and over!
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