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exostosis

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

noun

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


exostosis British  
/ ˌɛksɒˈstəʊsɪs /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Nouns

Etymology

Origin of exostosis

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

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

When derived from hyaline cartilage—for example, at the ends of the long bones—it is known as a cartilaginous exostosis.

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

Before there is a visible exostosis, supersensitiveness is readily recognized upon palpation of the parts, if careful comparison is made between the sound and unsound members.

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

Lameness usually precedes the formation of exostosis, though cases are observed wherein an exostosis is present and no lameness is manifested and no history of the previous existence of lameness is available.

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

Primary Tumours—Osteoma.—When the tumour projects from the surface of a bone it is called an exostosis.

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

The fighting knobs mentioned above, are very interesting, large exostoses on one of the wrist-bones of either wing; they were undoubtedly covered with a thick, callous skin.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 5 "Dinard" to "Dodsworth" by Various

The camel was affected with rickets and the aurochs had multiple exostoses or bony tumors.

From The Uttermost Farthing A Savant's Vendetta by Freeman, R. Austin (Richard Austin)

Erichsen mentions a young man of twenty-one with 15 groups of symmetric exostoses in various portions of the body; they were spongy or cancellous in nature.

From Anomalies and Curiosities of Medicine by Pyle, Walter L. (Walter Lytle)

Chondroma.—Cartilaginous tumours, apart from those giving rise to multiple exostoses, grow from the long bones and from the scapula, ilium, ribs, or jaws.

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

Barwell had a case of a girl with 38 exostoses.

From Anomalies and Curiosities of Medicine by Pyle, Walter L. (Walter Lytle)

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