'Mesethmoid' definitions:

Definition of 'Mesethmoid'

From: GCIDE

Mesethmoid \Mes*eth"moid\, a. [Mes- + ethmoid.] (Anat.) Of or pertaining to the middle of the ethmoid region or ethmoid bone. -- n. (Anat.) The median vertical plate, or median element, of the ethmoid bone. [1913 Webster]