Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • adj. Of, relating to, or being a light spongy bone located between the orbits, forming part of the walls and septum of the superior nasal cavity, and containing numerous perforations for the passage of the fibers of the olfactory nerves.
  • n. The ethmoid bone.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • adj. Resembling a sieve.
  • n. The ethmoid bone.

from the GNU version of the Collaborative International Dictionary of English

  • adj. Like a sieve; cribriform.
  • adj. Pertaining to, or in the region of, the ethmoid bone.
  • n. The ethmoid bone.

from The Century Dictionary and Cyclopedia

  • Sieve-like; cribriform: in anatomy specifically applied to a bone of the skull. See II.
  • Specifically, pertaining to the ethmoid: as, the ethmoid region of the skull.
  • n. A bone of the cranium, situated in the middle line of the skull, in advance of the sphenoid, above the basicranial axis, transmitting the filaments of the olfactory nerve, and constituting the bony skeleton of the organ of smell: so called because, in the human subject and mammalia generally, it has a cribriform plate perforated with numerous holes for the passage of the olfactory nerves.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • 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

Etymologies

French ethmoïde, from Greek ēthmoeidēs, sievelike : ēthmos, strainer (from ēthein, to sift) + -oeidēs, -oid.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek ἠθμοειδής (ēthmoeidēs, "like a strainer or sieve"), from ἠθμός (ēthmos, "a strainer, colander, sieve"), from ἤθειν (ēthein, "to sift, strain"). (Wiktionary)

Examples

  • Again, a line drawn through the axis of the face, between the bones called ethmoid and vomer — the “basifacial axis” (‘f e’.) forms an exceedingly obtuse angle, where, when produced, it cuts the ‘basicranial axis.’

    Essays

  • In the cribriform plate of the ethmoid are the foramina for the olfactory nerves, and on the posterior part of the roof is the opening into the sphenoidal sinus.

    II. Osteology. 5d. The Interior of the Skull

  • Below the bulla ethmoidalis and hidden by the uncinate process of the ethmoid is the opening of the maxillary sinus (ostium maxillare); an accessory opening is frequently present above the posterior part of the inferior nasal concha.

    II. Osteology. 5d. The Interior of the Skull

  • Again, a line drawn through the axis of the face, between the bones called ethmoid and vomer -- the "basifacial axis" ( 'f

    Lectures and Essays

  • But then that one intern remembered something about a rare condition caused by pressure on the anterior ethmoid nerve in the nose.

    Chocolate & Vicodin

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    Your Election Central Guide To Blogs Covering The 2008 Presidential Election

  • The ethmoid sinuses which are right along the side of your nose and the maxillary sinuses in your cheek.

    CNN Transcript Mar 20, 2007

  • “Humans possess a tiny, shiny crystal of magnetite in the ethmoid bone, located between your eyes, just behind the nose.”

    Think Progress » Former President Bush Blames ‘Bloggers’ for ‘Ugly’ Political Climate

  • He sidestepped, knifing another man in the throat, as a swordsman would make his lunge, Rourke's left hand stabbing outward, the middle knuckle impacting beneath the nose of another man, breaking it, bringing the bone up and puncturing the ethmoid bone, the nose driven up into the brain, the man's eyes rolled as he fell back dead.

    The End Is Coming

  • The divisions of the olfactory nerve pass through many small openings in the ethmoid bone to connect with the olfactory bulbs, which in turn connect with the cerebrum (A, Fig. 147).

    Physiology and Hygiene for Secondary Schools

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