osteoporosis

noun

os·​te·​o·​po·​ro·​sis ˌä-stē-ō-pə-ˈrō-səs How to pronounce osteoporosis (audio)
plural osteoporoses ˌä-stē-ō-pə-ˈrō-ˌsēz How to pronounce osteoporosis (audio)
: a condition that affects especially older women and is characterized by decrease in bone mass with decreased density and enlargement of bone spaces producing porosity and fragility
osteoporotic adjective

Examples of osteoporosis in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Estrogen helps protect against osteoporosis and can help with blood pressure, mood, memory and libido. Laura Trujillo, USA Today, 6 May 2026 However, in some individuals with certain health conditions, low magnesium intake may lead to changes in the body that increase the risk of chronic illnesses over time, such as cardiovascular disease and osteoporosis. Angelica Bottaro, Verywell Health, 1 May 2026 Diagnosed with osteoporosis from what the doctor said was due to a lack of childhood nutrition. Literary Hub, 24 Apr. 2026 Women also tend to have higher rates of health issues, like osteoporosis, that are connected to vitamin D deficiency. Helen Carefoot, Flow Space, 24 Apr. 2026 See All Example Sentences for osteoporosis

Word History

Etymology

New Latin, from oste- + porosis rarefaction, from porus pore + -osis

First Known Use

1841, in the meaning defined above

Time Traveler
The first known use of osteoporosis was in 1841

Browse Nearby Words

Cite this Entry

“Osteoporosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/osteoporosis. Accessed 11 May. 2026.

Kids Definition

osteoporosis

noun
os·​te·​o·​po·​ro·​sis ˌäs-tē-ō-pə-ˈrō-səs How to pronounce osteoporosis (audio)
: a condition affecting especially older women that is characterized by weak bones that are easily broken

Medical Definition

osteoporosis

noun
os·​teo·​po·​ro·​sis ˌäs-tē-ō-pə-ˈrō-səs How to pronounce osteoporosis (audio)
plural osteoporoses -ˌsēz How to pronounce osteoporosis (audio)
: a condition that affects especially older women and is characterized by decrease in bone mass with decreased density and enlargement of bone spaces producing porosity and brittleness
osteoporotic adjective

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