a. [ Ex + osseous. ] Boneless. “Exosseous animals. ” Sir T. Browne. [ 1913 Webster ]
{ } a. [ Pref. inter- + osseous: cf. F. interosseux. ] (Anat.) Situated between bones; as, an interosseous ligament. [ 1913 Webster ]
a. [ L. osseus, from os, ossis bone; akin to Gr. 'oste`on, Skr. asthi. Cf. Oyster. ] Composed of bone; resembling bone; capable of forming bone; bony; ossific. [ 1913 Webster ]