Ethmoidal

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Ethmoid \Eth"moid\, Ethmoidal \Eth*moid"al\, a. [Gr. ? like a
     sieve; ? sieve + ? from: cf. F. ethmo["i]de, ethmo["i]dal.]
     (Anat.)
     (a) Like a sieve; cribriform.
     (b) Pertaining to, or in the region of, the ethmoid bone.
         [1913 Webster]


  
     {Ethmoid bone} (Anat.), a bone of complicated structure
        through which the olfactory nerves pass out of the cranium
        and over which they are largely distributed.
        [1913 Webster]