osteoporosis
NounUS[aw-stee-ah-per-oh-sis]/ˌɔstiˌɑpɚˈoʊsɪs/6 syllables
Open English WordNet
Noun (1)
- abnormal loss of bony tissue resulting in fragile porous bones attributable to a lack of calcium; most common in postmenopausal womenType of pathologyKinds dowager's hump
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onerousadjective
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Webster's Dictionary (1913)
Os′te·o·po·ro′sis noun
Origin: NL.; osteo- + Gr. πόρος pore.
Med. & Physiol. An absorption of bone so that the bone tissue becomes unusually porous. It occurs especially in elderly men and postmenopausal women, and predisposes the elderly to fractures of the bones.
Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54 · with additions: +PJC, 1913 supplement