presphenoidn.adj.

Brit.

/priːˈsfiːnɔɪd/, U.S.

/priˈsfiˌnɔɪd/

Origin: Formed within English, by derivation. Etymons: pre- prefix, sphenoid n.

Etymology: < pre- prefix + sphenoid n. Compare postsphenoid n., postsphenoid adj.

Zoology and Anatomy.

A. n.

A bone of the floor of the cranium, anterior to the sphenoid bone; (also) the anterior part of the sphenoid bone.

ΘΚΠ

the world > life > the body > structural parts > bone or bones > skull > parts of skull > [noun] > sphenoid bone > parts of or associated with

pterygium1684

sella1684

pterygoid process1697

pterygoid bone1719

pterygoid fossa1733

pterygoidean1753

pterygoid plate1758

pterygoid1822

ingrassial bones1839

alisphenoid1846

presphenoid1851

clinoid1854

postsphenoid1862

postsphenoid bone1862

mesopterygoid fossa1881

Vesalian foramen1891

1851 Philos. Trans. (Royal Soc.) 141 693 The structure of the presphenoid in the very young Haddock illustrates my remarks respecting the same bone in the Pike.

1878 L. Holden Human Osteol. (ed. 5) 85 The front part of the body, termed ‘presphenoid’, has two centres of its own.

1881 St. G. Mivart 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.

1939 T. L. Green Pract. Animal Biol. i. 153 In the base of the skull are the basi-occipital, basisphenoids, alisphenoids, presphenoids and vomer.

1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) viii. 260 In some mammals..the presphenoid is the most anterior part of the braincase.

B. adj.

Situated anterior to the sphenoid; of or designating the presphenoid.

ΘΚΠ

the world > life > the body > structural parts > bone or bones > skull > parts of skull > [adjective] > sphenoid bone

paxillarya1400

sphenoidal1726

presphenoid1858

1858 Philos. Trans. (Royal Soc.) 148 878 The anterior or presphenoid portion of the bone..is extended forwards beyond the palatal bones.

1923 Philos. Trans. (Royal Soc.) B. 211 217 The presphenoid cartilage shows no signs of ossification.

1977 Teratol. 15 243 Delayed ossification of the skeleton with cleft palate accompanied by delayed ossification of the presphenoid bone.

1995 Jrnl. Anat. 186 423 The rectus muscles originate very close one to another between the orbital surfaces of the presphenoid and palatine bones.

Derivatives

ˌprespheˈnoidal adj. = sense B.

ΘΚΠ

the world > life > the body > structural parts > bone or bones > skull > parts of skull > [adjective] > sphenoid bone > parts of or associated with

pterygoidal1694

pterygoid1732

pterygoidean1753

alisphenoid1847

alisphenoidal1847

postsphenoidal1853

presphenoidal1854

metafacial1878

1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 251 The superior turbinals extend..below into the presphenoidal sinus.

1944 Amer. Midland Naturalist 31 439 The skull of Trogonophis was not dissected for the examination of the presphenoidal and orbitosphenoidal regions.

1980 Gray's Anat. (ed. 36) 326/1 The presphenoidal and postsphenoidal parts of the body fuse about the eighth month of intrauterine life.

This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).

单词	presphenoid
释义	presphenoidn.adj. Brit. /priːˈsfiːnɔɪd/, U.S. /priˈsfiˌnɔɪd/ Origin: Formed within English, by derivation. Etymons: pre- prefix, sphenoid n. Etymology: < pre- prefix + sphenoid n. Compare postsphenoid n., postsphenoid adj. Zoology and Anatomy. A. n. A bone of the floor of the cranium, anterior to the sphenoid bone; (also) the anterior part of the sphenoid bone. ΘΚΠ the world > life > the body > structural parts > bone or bones > skull > parts of skull > [noun] > sphenoid bone > parts of or associated with pterygium1684 sella1684 pterygoid process1697 pterygoid bone1719 pterygoid fossa1733 pterygoidean1753 pterygoid plate1758 pterygoid1822 ingrassial bones1839 alisphenoid1846 presphenoid1851 clinoid1854 postsphenoid1862 postsphenoid bone1862 mesopterygoid fossa1881 Vesalian foramen1891 1851 Philos. Trans. (Royal Soc.) 141 693 The structure of the presphenoid in the very young Haddock illustrates my remarks respecting the same bone in the Pike. 1878 L. Holden Human Osteol. (ed. 5) 85 The front part of the body, termed ‘presphenoid’, has two centres of its own. 1881 St. G. Mivart 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. 1939 T. L. Green Pract. Animal Biol. i. 153 In the base of the skull are the basi-occipital, basisphenoids, alisphenoids, presphenoids and vomer. 1986 A. S. Romer & T. S. Parsons Vertebr. Body (ed. 6) viii. 260 In some mammals..the presphenoid is the most anterior part of the braincase. B. adj. Situated anterior to the sphenoid; of or designating the presphenoid. ΘΚΠ the world > life > the body > structural parts > bone or bones > skull > parts of skull > [adjective] > sphenoid bone paxillarya1400 sphenoidal1726 presphenoid1858 1858 Philos. Trans. (Royal Soc.) 148 878 The anterior or presphenoid portion of the bone..is extended forwards beyond the palatal bones. 1923 Philos. Trans. (Royal Soc.) B. 211 217 The presphenoid cartilage shows no signs of ossification. 1977 Teratol. 15 243 Delayed ossification of the skeleton with cleft palate accompanied by delayed ossification of the presphenoid bone. 1995 Jrnl. Anat. 186 423 The rectus muscles originate very close one to another between the orbital surfaces of the presphenoid and palatine bones. Derivatives ˌprespheˈnoidal adj. = sense B. ΘΚΠ the world > life > the body > structural parts > bone or bones > skull > parts of skull > [adjective] > sphenoid bone > parts of or associated with pterygoidal1694 pterygoid1732 pterygoidean1753 alisphenoid1847 alisphenoidal1847 postsphenoidal1853 presphenoidal1854 metafacial1878 1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 251 The superior turbinals extend..below into the presphenoidal sinus. 1944 Amer. Midland Naturalist 31 439 The skull of Trogonophis was not dissected for the examination of the presphenoidal and orbitosphenoidal regions. 1980 Gray's Anat. (ed. 36) 326/1 The presphenoidal and postsphenoidal parts of the body fuse about the eighth month of intrauterine life. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < n.adj.1851
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