| BACKBONE | • backbone n. The series of vertebrae, separated by disks, that encloses and protects the spinal cord, and runs down… • backbone n. (Figuratively) Any fundamental support, structure, or infrastructure. • backbone n. (Figuratively) Courage, fortitude, or strength. | 
| BAREBONE | • barebone n. A very lean person, especially one whose bones show through the skin. • BAREBONE n. (Shakespeare) a very lean person; one whose bones show through the skin. | 
| BROWBONE | • browbone n. The orbital ridge of the eye. • BROWBONE n. the bone of the brow. | 
| CHINBONE | • chinbone n. That part of the mandible that forms the chin. • CHINBONE n. the lower jaw. | 
| EDGEBONE | • edgebone n. Alternative form of aitchbone. • EDGEBONE n. the bone of the rump in cattle, also AITCHBONE. | 
| FISHBONE | • fishbone n. A bone from a fish. • FISHBONE n. a bone of a fish. | 
| KNITBONE | • knitbone n. The plant comfrey. • KNITBONE n. the plant comfrey. | 
| RINGBONE | • ringbone n. Osteoarthritis affecting any of several bones of a horse’s foot. • ring-bone n. (Veterinary medicine, equestrianism) A bony deposit on the leg of a horse, forming a ring around the bone. • RINGBONE n. a bony growth on a horse's foot. | 
| SHINBONE | • shinbone n. (Anatomy) The inner and usually the larger of the two bones of the leg or hind limb below the knee. • shinbone n. (Zoology) A segment of an insect’s leg. • SHINBONE n. the tibia. | 
| SIDEBONE | • sidebone n. A morbid growth or deposit of bony matter at the sides of the coronet and coffin bone of a horse. • SIDEBONE n. ossification of the lateral cartilages in a horse's foot. | 
| TAILBONE | • tailbone n. (Informal) The final fused vertebrae at the base of the spine; the coccyx. • tail␣bone n. Alternative form of tailbone. • TAILBONE n. the coccyx. | 
| TROMBONE | • trombone n. A musical instrument in the brass family, having a cylindrical bore, and usually a sliding tube (but… • trombone n. The common European bittern. • trombone n. (Film, television) A kind of extendable support for attaching lighting elements to a set. | 
| WISHBONE | • wishbone n. A forked bone between the neck and breast of a bird consisting chiefly of the two clavicles fused at… • wishbone n. (Nautical) A spar in two parts, between which a sail is hoisted, the wishbone extending its clew. • wishbone n. (Nautical) Any sailing vessel rigged with a wishbone. |