Medical Dictionary

ethmoidal air cells

noun pl

Definition of ETHMOIDAL AIR CELLS

:  the cavities in the lateral masses of the ethmoid bone that are partly completed by adjoining bones and communicate with the nasal cavity—called also ethmoidal cells
March 31, 2015
refluent Hear it
Flowing back
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears