exostosis

American  

[ek-so-stoh-sis, -suh-] / ˌɛk sɒˈstoʊ sɪs, -sə- /

noun

Pathology.

plural

exostoses

1. the abnormal formation of a bony growth on a bone or tooth.

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exostosis British  

/ ˌɛksɒˈstəʊsɪs /

noun

1. an abnormal bony outgrowth from the surface of a bone

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Other Word Forms

• exostosed adjective
• exostotic adjective

Etymology

Origin of exostosis

1730–40; < New Latin < Greek exóstōsis an outgrowth. See ex- ³, ostosis

Example Sentences

Jomon skeletons show a high incidence of what pathologists term auditory exostosis, meaning abnormal bone growth in the ears as often observed in divers today.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond

This operation has its indications, however, and may be recommended in chronic lameness where no extensive exostosis exists which may mechanically interfere with function.

From Lameness of the Horse Veterinary Practitioners' Series, No. 1 by Lacroix, John Victor

Before there is evidence of an exostosis, diagnosis of ringbone is not easy, for it is then a problem of detecting the presence of a ligamentous sprain, periostitis, or osteitis.

From Lameness of the Horse Veterinary Practitioners' Series, No. 1 by Lacroix, John Victor

From the fact that it projects from the surface of the bone it is often spoken of as an exostosis.

From Manual of Surgery Volume First: General Surgery. Sixth Edition. by Thomson, Alexis

French veterinarians consider under the title of "courbe," an exostosis situated on the mesial side of the distal end of the tibia.

From Lameness of the Horse Veterinary Practitioners' Series, No. 1 by Lacroix, John Victor