| SIN | used of powdery metals or ores |
|---|---|
| SIN | formed into a mass by heat and pressure |
| SIN | having a strongly waved margin alternately concave and convex |
| SIN | curved or curving in and out |
| SIN | having curves |
| SIN | curved or curving in and out |
| SIN | having curves |
| SIN | a wide channel containing blood |
| SIN | any of various air-filled cavities especially in the bones of the skull |
| SIN | an abnormal passage leading from a suppurating cavity to the body surface |
| SIN | either of a pair of large venous sinuses in the cranial cavity |
| SIN | a short sinus receiving most of the veins of the heart |