a particular complex anatomical part of a living thing and its construction and arrangement

a covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss

hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense

a specialized bony substance covering the root of a tooth

horny plate covering and protecting part of the dorsal surface of the digits

a covering for the body (or parts of it) consisting of a dense growth of threadlike structures (as on the human head); helps to prevent heat loss

hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense

a specialized bony substance covering the root of a tooth

horny plate covering and protecting part of the dorsal surface of the digits