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Definition of osteoporosis
osteoporosis
/ˌɒs.ti.oʊ.pəˈroʊ.sɪs/
os · te · o · po · ro · sis
Plural:osteoporoses
•Adjective:osteoporotic
osteoporosis Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Top 10k
Syllables
6
osteoporosis Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A progressive skeletal disorder characterized by a decrease in bone mineral density and mass, resulting in porous, fragile bones that are highly susceptible to fractures.
Example
"Regular weight-bearing exercise and adequate calcium intake can help reduce the risk of developing osteoporosis later in life."
Word Nuance & Usage
Often confused with osteoarthritis, which is a degenerative condition affecting joint cartilage, whereas osteoporosis specifically weakens the internal structure and density of the bones themselves.
• Rhymes for osteoporosis
• Nearby Words
Word Origin & Etymology
Coined in the mid-19th century via French ostéoporose, combining Ancient Greek osteon ('bone'), poros ('pore' or 'passage'), and the medical suffix -osis ('condition').
Usage Trend
Historical frequency of usage in published text.
180019102020
Data source: Google Books Ngram Viewer
Cite this Entry
Wordmom. (2026). Definition of Osteoporosis. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/osteoporosis