ˈkambərəs noun
Usage: capitalized
Etymology: New Latin, alteration (influenced by Late Latin gambarus, alteration of Latin cammarus ) of Latin cammarus sea crab, lobster, from Greek kammaros; akin to Old Norse humarr lobster, Sanskrit kamaṭha tortoise, and probably to Latin camur curved — more at chamber
: a genus of crayfishes (family Astacidae) lacking pleurobranchiae, having a specialized sperm receptacle, and including the common large crayfishes of eastern No. America some of which (especially C. limosus ) are used as food