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

The hair over the entire surgical field is clipped and the cautery at white heat is pushed through the overlying soft tissues and into the central part of the exostosis.

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

Whereas, in cases where other treatment is begun early, there usually follows considerable diminution in the size of the exostosis.

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

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

This intermittent type of lameness may continue until there is developed a large exostosis, or until articular involvement causes so much distress during locomotion that lameness is constant.

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