ethmoid
the deep, embryonic, perichondral, cartilaginous bone ossifying in and around the nasal septum. Later covered by the nasals, prevomer, adnasals (and rostrals) and located anterior to the orbit. It may not ossify in some Teleostei. Also called hypethmoid and dermethmoid

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • 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 …   The Collaborative International Dictionary of English

  • Ethmoid — Eth moid . (Anat.) The ethmoid bone. [1913 Webster] …   The Collaborative International Dictionary of English

  • ethmoid — [eth′moid΄] adj. [Gr ēthmoeidēs < ēthmos, strainer, sieve (< ēthein, to strain < IE base * sē(i) ) + eidos, OID] designating or of the perforated bone or bones that form part of the septum and walls of the nasal cavity: the olfactory… …   English World dictionary

  • ethmoid — See e. bone. SYN: os ethmoidale [TA]. [G. ethmos, sieve, + eidos, resemblance] * * * eth·moid eth .mȯid or eth·moi·dal eth mȯid əl adj of, relating to, adjoining, or being one or more bones of the walls and septum of the nasal cavity ethmoid n… …   Medical dictionary

  • ethmoid — noun Etymology: French ethmoïde, from Greek ēthmoeidēs, literally, like a strainer, from ēthmos strainer Date: 1842 a light spongy cubical bone forming much of the walls of the nasal cavity and part of those of the orbits • ethmoid or ethmoidal… …   New Collegiate Dictionary

  • ethmoid — /eth moyd/, Anat. adj. 1. Also, ethmoidal. of or pertaining to a bone at the base of the cranium and the root of the nose, containing numerous perforations for the filaments of the olfactory nerve. n. 2. the ethmoid bone. [1735 45; < Gk… …   Universalium

  • ethmoid — 1. adjective Resembling a sieve. 2. noun The ethmoid bone …   Wiktionary

  • ethmoid — n. bone at the base of the skull (Anatomy) adj. (Anatomy) pertaining to an ethmoid (at the base of the skull) …   English contemporary dictionary

  • ethmoid — eth•moid [[t]ˈɛθ mɔɪd[/t]] adj. 1) anat. Also, eth•moi′dal. of or pertaining to a cranial bone at the back of the nasal cavity, through which olfactory nerve processes pass into the nose 2) anat. the ethmoid bone • Etymology: 1735–45; < Gk… …   From formal English to slang

  • ethmoid — /ˈɛθmɔɪd/ (say ethmoyd) adjective 1. designating or relating to a bone of the skull at the root of the nose, containing numerous perforations for the filaments of the olfactory nerve. –noun 2. the ethmoid bone. {Greek ethmoeidēs sieve like}… …   Australian English dictionary

  • ethmoid — adj. sievelike. Phrases and idioms: ethmoid bone a square bone at the root of the nose, with many perforations through which the olfactory nerves pass to the nose. Derivatives: ethmoidal adj. Etymology: Gk ethmoeides f. ethmos sieve …   Useful english dictionary

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