‖n. pl. [ NL., fr. Gr. &unr_; cartilage + &unr_; bone. ] (Zool.) An order of fishes, including the sturgeons; -- so named because the skeleton is cartilaginous. [ 1913 Webster ]
a. [ L. fibra a fiber + gr. cho`ndros cartilage + 'oste`on bone. ] (Anat.) Partly fibrous, partly cartilaginous, and partly osseous. St. George Mivart. [ 1913 Webster ]