eth·moid /ɛθˈmɔɪdḷ/ 形容詞
  篩狀的,篩骨
  Eth·moid n. Anat. The ethmoid bone.
  ◄ ►
  Eth·moid Eth·moid·al a.  Anat. (a) Like a sieve; cribriform. (b) Pertaining to, or in the region of, the ethmoid bone.
  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.
  ◄ ►
  ethmoid
       n : one of the eight bones of the cranium; a small bone filled
           with air spaces that forms part of the eye sockets and
           the nasal cavity [syn: ethmoid bone]