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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

There are several other diseases of the bones, which, we presume, our readers are acquainted with; such as exostosis, caries, &c., neither of which apply to the malady under consideration.

From The American Reformed Cattle Doctor by Dadd, George

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

The author lately excised one-half of shaft of metatarsal and the corresponding half of proximal phalanx of great toe for exostosis, with antiseptic precautions.

From A Manual of the Operations of Surgery For the Use of Senior Students, House Surgeons, and Junior Practitioners by Bell, Joseph

When growing from bones developed in membrane, such as the flat bones of the skull, it is usually dense like ivory, and the term ivory exostosis is employed.

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

Periarticular ringbone is characterized by exostoses which are situated on the sides of the phalanges and not extending around to the anterior part of the joint.

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

Bony formations occur in muscles and tendons, especially at their points of attachment to the skeleton, and are known as false exostoses; they are described with the diseases of muscles.

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

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)

They have no malignant tendencies and tend to undergo ossification concurrently with the epiphysial cartilage from which they take origin, and constitute what are known as cartilaginous exostoses.

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

Symptomatology.—Where a visible exostosis exists, the presence of spavin is easily detected, yet exostoses that extend over large areas may constitute cause for serious trouble and still be difficult of detection.

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

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