whalebone: a horny material from the upper jaws of certain whales; used as the ribs of fans or as stays in corsets
horn: the material (mostly keratin) that covers the horns of ungulates and forms hooves and claws and nails
majority operation: a threshold operation in which each operand is 0 or 1; output is 1 if and only if more than half the operands have the value 1