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 term is applied to an affection of the tarsus which is usually characterized by the existence of an exostosis on the mesial and inferior portion of the hock.

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

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

By observing the internal surface of the hock from various suitable angles, such as from between the forelegs or directly behind the subject, one may note the presence of any ordinary exostosis.

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

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