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si·nus
 sinus
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- pronunciation:
- saI
n
 s
- features:
- Word Combinations (noun)
| part of speech: |
noun |
| inflections: |
sinuses |
| definition 1: |
any of various bodily cavities, recesses, or channels, esp. those in the skull bone that connect with the nasal cavities.
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| definition 2: |
a curve, bend, or recess.
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| related words: |
bow |
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