| sinu | any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with lining of the nasal cavities |
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| sinu | an unpaired sinus of the dura mater |
| sinu | an S-shaped dural sinus on the temporal and occipital bones |
| sinu | a paired dural sinus |
| sinu | a circular canal in the eye that drains aqueous humor from the anterior chamber of the eye into the anterior ciliary veins |
| sinu | inflammation of one of the paranasal sinuses |
| sinu | tiny endothelium-lined passages for blood in the tissue of an organ |
| sinu | the curve of y=sin x |
| sinu | having a succession of waves or curves |
| sinu | an equal-area map projection showing parallels and the equator as straight lines and other meridians as curved |
| sinu | in a sinusoidal manner |