“presphenoid”的英文意思_释义_用法

单词

presphenoid

释义

presphenoid Anat.|-ˈsfiːnɔɪd|
[f. pre- A. 4 + sphenoid.]
The anterior part of the sphenoid bone of the skull, which forms a separate bone in (human) infancy. Hence presphenoidal |ˌpriːsfiːˈnɔɪdəl| a., of or pertaining to the presphenoid.
1854Owen Skel. & Teeth in Orr's Circ. Sc. I. Org. Nat. 193 The basisphenoid and presphenoid form a single bone, and the chief keel of the cranial superstructure.Ibid. 251 The superior turbinals extend..below into the presphenoidal sinus.1855Holden Hum. Osteol. (1878) 85 The front part of the body, termed ‘presphenoid’, has two centres of its own.1872Mivart Elem. Anat. 83 The anterior part of the body, or pre-sphenoidal part.1881― Cat 60 The occipital, two parietals, two frontals, two temporals, the sphenoid, the presphenoid, the ethmoid—which ten bones compose the cranium, or skull proper.

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