Most common in postmenopausal women

• Abnormal loss of bony tissue resulting in fragile porous bones attributable to a lack of calcium
• Bone deficiency

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
1846, from osteo- + stem of Greek poros "passage, pore, voyage" (see pore (n.)) + -osis . Related: Osteoporotic .

Wiktionary Word definitions in Wiktionary
n. (context pathology English) A disease, occurring especially in women following menopause, in which the bones become extremely porous and are subject to fracture.

WordNet Word definitions in WordNet
n. abnormal loss of bony tissue resulting in fragile porous bones attributable to a lack of calcium; most common in postmenopausal women

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Osteoporosis \Os`te*o*po*ro"sis\, n. [NL.; osteo- + Gr. po`ros 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 ...

Wikipedia Word definitions in Wikipedia
Osteoporosis is a disease where decreased bone strength increases the risk of a broken bone . It is the most common reason for a broken bone among the elderly . Bones that commonly break include the back bones , the bones of the forearm , and the hip . ...

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
noun EXAMPLES FROM CORPUS ▪ Although 70 years old and permanently hunched over from osteoporosis , she was still a compact bundle of energy. ▪ Before considering their use, however, your wife should not forget about other important measures to treat osteoporosis ...