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, sinuose, scincus, sinuous, sinusô, schinus, socinus, sinewous, sowins, sinque, sinsay, simous, simonious, succinous, swinish, simious, sink, sing, siyense, shiness
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