12-Letter Words Starting With OS

Here's the list of all the 32 12-Letter Words Starting With OS in the English Language.

The list is arranged by the word lengths. Click on the length below to jump to the relevant section of the page.

Common Words (with Definitions and Examples)
osteoporosis
1. abnormal loss of bony tissue resulting in fragile porous bones attributable to a lack of calcium; most common in postmenopausal women
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oscilloscope
1. electronic equipment that provides visual images of varying electrical quantities
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osteosarcoma
1. malignant bone tumor; most common in children and young adults where it tends to affect the femur
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ossification
1. the developmental process of bone formation
2. the calcification of soft tissue into a bonelike material
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12-Letter Words Starting With OS