hy·per·os·to·sis | \ˌhī-pər-ˌä-ˈstō-səs \
plural hyperostoses\ˌhī-pər-ˌä-ˈstō-ˌsēz \

Definition of hyperostosis 

: excessive growth or thickening of bone tissue

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Other Words from hyperostosis

hyperostotic \ˌhī-pər-ˌä-ˈstä-tik \ adjective

Examples of hyperostosis in a Sentence

Recent Examples on the Web

For the past 10 years, Dripps had struggled with spinal deterioration and had a dual diagnosis of diffuse idiopathic skeletal hyperostosis and ankylosing spondylitis. Janelle Walker, Elgin Courier-News, "Family of man who shot 3 officers in South Elgin standoff says he was distraught with health, financial woes," 10 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hyperostosis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of hyperostosis

circa 1836, in the meaning defined above

History and Etymology for hyperostosis

New Latin

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Time Traveler for hyperostosis

The first known use of hyperostosis was circa 1836

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More Definitions for hyperostosis


hy·per·os·to·sis | \ˌhī-pə-ˌräs-ˈtō-səs \
plural hyperostoses\-ˈtō-ˌsēz \

Medical Definition of hyperostosis 

: excessive growth or thickening of bone tissue

Other Words from hyperostosis

hyperostotic \-ˈtät-ik \ adjective

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