osteoporosis
noun /ˌɒstiəʊpəˈrəʊsɪs/
/ˌɑːstiəʊpəˈrəʊsɪs/
(also brittle bone disease)
[uncountable] (medical)- a condition in which the bones become weak and are easily broken, usually when people get older or because they do not eat enough of certain substancesOxford Collocations DictionaryOsteoporosis is used before these nouns:
- prevention
Word Originmid 19th cent.: from osteo- ‘bone’ + Greek poros ‘passage, pore’ + -osis.