| OSTEICHTHYANS | • osteichthyans n. Plural of osteichthyan. • OSTEICHTHYAN n. a bony fish. |
| OSTENSIBILITY | • ostensibility n. The quality of being ostensible. • OSTENSIBILITY n. the state of being ostensible, intended for display. |
| OSTEOFIBROSES | • OSTEOFIBROSIS n. fibrosis of the bone. |
| OSTEOFIBROSIS | • osteofibrosis n. Fibrotic osteodystrophy. • OSTEOFIBROSIS n. fibrosis of the bone. |
| OSTEOGRAPHIES | • osteographies n. Plural of osteography. • OSTEOGRAPHY n. a description of bones. |
| OSTEOMALACIAL | • OSTEOMALACIAL adj. relating to osteomalacia, softening of the skull due to calcium deficiency, also OSTEOMALACIC. |
| OSTEOMALACIAS | • osteomalacias n. Plural of osteomalacia. • OSTEOMALACIA n. softening of the skull due to calcium deficiency. |
| OSTEOMYELITIS | • osteomyelitis n. (Pathology) An infection of the bone. • OSTEOMYELITIS n. inflammation of bone marrow. |
| OSTEOPATHISTS | • osteopathists n. Plural of osteopathist. • OSTEOPATHIST n. a practitioner of osteopathy, also OSTEOPATH. |
| OSTEOPETROSES | • osteopetroses n. Plural of osteopetrosis. • OSTEOPETROSIS n. a general name for a group of hereditary bone diseases, including marble bone disease, in which bone becomes abnormally dense. |
| OSTEOPETROSIS | • osteopetrosis n. (Pathology) A rare hereditary disorder characterized by hard, dense bones. • OSTEOPETROSIS n. a general name for a group of hereditary bone diseases, including marble bone disease, in which bone becomes abnormally dense. |
| OSTEOPLASTIES | • osteoplasties n. Plural of osteoplasty. • OSTEOPLASTY n. plastic surgery on bone. |
| OSTEOSARCOMAS | • osteosarcomas n. Plural of osteosarcoma. • OSTEOSARCOMA n. a malignant tumour derived from osteoblasts, composed of bone and sarcoma cells. |
| OSTREICULTURE | • ostreiculture n. Oyster farming. • OSTREICULTURE n. oyster-breeding. |
| OSTREOPHAGIES | • OSTREOPHAGY n. the eating of oysters. |
| OSTREOPHAGOUS | • ostreophagous adj. Oyster-eating. • OSTREOPHAGOUS adj. oyster-eating. |