1. ethmoid - Noun
2. ethmoid - Adjective
Alt. of Ethmoidal
The ethmoid bone.
Source: Webster's dictionaryThe coelacanth's rostral organ, contained within the ethmoid region of the braincase, has three unguarded openings into the environment and is used as a part of the coelacanth's laterosensory system. Source: Internet
Orbital cellulitis can complicate acute ethmoiditis if anterior and posterior ethmoidal veins thrombophlebitis enables the spread of the infection to the lateral or orbital side of the ethmoid labyrinth. Source: Internet