braˈkignəthə, brəˈ- noun plural
Usage: capitalized
Etymology: New Latin, from brachy- + -gnatha
: a division of the tribe Brachyura comprising the Brachyrhyncha and Oxyrhyncha and including the majority of the true crabs with the mouth field more or less square, sternal female openings, and the last pair of legs usually normal in size and position