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单词 myodome
释义

myodomen.

Brit. /ˈmʌɪə(ʊ)ˌdəʊm/, U.S. /ˈmaɪoʊˌdoʊm/
Origin: A borrowing from Greek, combined with an English element. Etymons: myo- comb. form, Greek δόμος.
Etymology: < myo- comb. form + ancient Greek δόμος house, chamber ( < the same Indo-European base as timber n.1).
Zoology.
A cavity in the skull of most teleost fishes housing the rectus muscles of the eye.
ΚΠ
1888 T. Gill in Amer. Naturalist 22 357 Myodome (muscular tube) developed and cranial cavity open in front... Trigloidea.
1905 Science 12 May 754/2 That the floor of the myodome is the true cranial base and that the roof of it is simply a septum of secondary development would seem probable.
1974 D. Webster & M. Webster Compar. Vertebr. Morphol. iv. 67 This cavity, the myodome, houses the rectus muscles.
1998 Zool. Jrnl. Linn. Soc. 122 27 Several new basisphenoidal and postorbital wall characters are identified which are associated with early stages in posterior myodome evolution.
This entry has been updated (OED Third Edition, June 2003; most recently modified version published online March 2022).
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n.1888
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