Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
 
   
Display options
 
Lookup History
sinus

si·nus

sinus

 
pronunciation:
saI ns
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.
definition 2: a curve, bend, or recess.
Word CombinationsSubscriber feature About this feature