devil's-claw \ˈ ̷ ̷ ̷ ̷| ̷ ̷\noun (pluraldevil's-claws) 1. a.: unicorn plant b.: a cat's-claw (Acacia greggii) 2.: a strong split hook used on a ship to grasp a link of chain cable and act as a stopper; also: any of several hooked devices (as a grapnel or ice anchor)