Definition of sinus
English to English noun - an abnormal passage leading from a suppurating cavity to the body surface
source: WordNet 3.0 - any of various air-filled cavities especially in the bones of the skull
source: WordNet 3.0 - a wide channel containing blood; does not have the coating of an ordinary blood vessel
source: WordNet 3.0 - An opening; a hollow; a bending.
source: Webster 1913
Visual Synonyms 
Nearby Word
sinus, sinuous, scincus, sinusô, socinus, schinus, sinuose, sinewous, simous, sinque, sowins, sinsay, simonious, succinous, siyense, sens, squinsy, swinish, snug, shiness
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