postfrontaladj.n.

Brit.

/ˌpəʊs(t)ˈfrʌntl/, U.S.

/ˌpoʊs(t)ˈfrən(t)l/

Origin: Formed within English, by derivation. Etymons: post- prefix, frontal adj.

Etymology: < post- prefix + frontal adj. Compare slightly later prefrontal adj., prefrontal n. N.E.D. (1907) gives the pronunciation as (pō^ustˌfrǫ·ntăl) /pəʊstˈfrɒntəl/.

A. adj.

1. Zoology. Designating a bone forming part of the posterior rim of the orbit of the eye in some reptiles, amphibians, and fishes, and a process of the frontal bone corresponding to this in some mammals.

ΘΚΠ

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

crownal1553

ethmoidal1697

ethmoid1726

postfrontal1840

prefrontal1851

interfrontal1855

mesethmoid1875

1840 R. Owen in Rep. Brit. Assoc. Advancem. Sci. 1839 53 The post-frontal bone in Crocodiles.

1856 Philos. Trans. (Royal Soc.) 146 586 The postfrontal process is rudimentary in the Mylodon.

1889 Amer. Naturalist 23 863 Ribs two-headed; an interclavicle; acetabulum closed; feet ambulatory; no postfrontal bone.

1936 Philos. Trans. (Royal Soc.) B. 226 26 The post-frontal bone is larger than the post-orbital.

1973 A. d'A. Bellairs & J. F. D. Frazer Smith's Brit. Amphibians & Reptiles (ed. 5) iii. 63 A true postfrontal bone is lacking in the Caudata.

1996 Jrnl. Paleontol. 70 494 The braincase has very thick lateral walls, and a well-developed postfrontal foramen.

2. Anatomy. Situated in the posterior part of the frontal lobe of the brain.

ΘΚΠ

the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adjective] > lobe

rhinencephalic1846

postnasal1859

parietal1861

prefrontal1878

postrhinal1880

postfrontal1883

suboccipital1885

insular1886

transfrontal1889

preoptic1890

premotor1923

1883 Proc. Royal Soc. 36 223 Lesions of the frontal region vary accordingly as they affect the post-frontal (base of the frontal convolutions) or pre-frontal (anterior two-thirds of the frontal convolutions) region.

1899 T. C. Allbutt et al. Syst. Med. VII. 273 The frontal lobe..must be divided into a prefrontal and a post-frontal area.

1966 Science 29 Apr. 609/1 Bursts of 13- to 15-cycle-per-second waves were seen in most of the infants over postfrontal and parietal areas.

1979 Philos. Trans. (Royal Soc.) B. 285 327 These post-frontal cells around the back of the superior frontal lobe thus seem to collect influences by dendrites extending among the fibres.

B. n.

Zoology. A bone forming part of the posterior rim of the orbit of the eye in some reptiles, amphibians, and fishes.

ΘΚΠ

the world > animals > animal body > general parts > constituent materials > [noun] > bone at orbit of eye

angular1802

postfrontal1840

the world > life > the body > structural parts > bone or bones > skull > parts of skull > [noun] > front of skull > frontal bone

coronalc1400

brow-bonec1450

coronal bone1543

os frontis1578

postfrontal1840

bar of Michael Angelo1850

frontal1854

1840 R. Owen in Rep. Brit. Assoc. Advancem. Sci. 1839 54 The zygomatic element of the temporal bone..stretches horizontally from the malar and the post-frontal backwards.

1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 194 The post-frontal..is a moderately long trihedral bone, articulated by its expanded cranial end to the frontal and parietal.

1873 St. G. Mivart Lessons Elem. Anat. iii. 101 A bone exists in the skull of osseous Fishes which has often been called the ‘post-frontal’.

1936 Philos. Trans. (Royal Soc.) B. 226 14 In the upper part of the section we see the frontals, post-frontals, and post-orbitals cut across.

1958 W. E. Swinton Fossil Amphibians & Reptiles (ed. 2) vi. 27 (caption) E, Parapsid skull (Ichthyosaurs, Squamata); squamosal and postorbital separated from opening by the supratemporal and postfrontal.

2000 Science (Nexis) 3 Nov. 969 A long, narrow, boomerang-shaped postfrontal wraps around the posterodorsal margin of the orbit.

This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022).

单词	postfrontal
释义	postfrontaladj.n. Brit. /ˌpəʊs(t)ˈfrʌntl/, U.S. /ˌpoʊs(t)ˈfrən(t)l/ Origin: Formed within English, by derivation. Etymons: post- prefix, frontal adj. Etymology: < post- prefix + frontal adj. Compare slightly later prefrontal adj., prefrontal n. N.E.D. (1907) gives the pronunciation as (pō^ustˌfrǫ·ntăl) /pəʊstˈfrɒntəl/. A. adj. 1. Zoology. Designating a bone forming part of the posterior rim of the orbit of the eye in some reptiles, amphibians, and fishes, and a process of the frontal bone corresponding to this in some mammals. ΘΚΠ the world > life > the body > structural parts > bone or bones > skull > parts of skull > [adjective] > front of skull > frontal bone crownal1553 ethmoidal1697 ethmoid1726 postfrontal1840 prefrontal1851 interfrontal1855 mesethmoid1875 1840 R. Owen in Rep. Brit. Assoc. Advancem. Sci. 1839 53 The post-frontal bone in Crocodiles. 1856 Philos. Trans. (Royal Soc.) 146 586 The postfrontal process is rudimentary in the Mylodon. 1889 Amer. Naturalist 23 863 Ribs two-headed; an interclavicle; acetabulum closed; feet ambulatory; no postfrontal bone. 1936 Philos. Trans. (Royal Soc.) B. 226 26 The post-frontal bone is larger than the post-orbital. 1973 A. d'A. Bellairs & J. F. D. Frazer Smith's Brit. Amphibians & Reptiles (ed. 5) iii. 63 A true postfrontal bone is lacking in the Caudata. 1996 Jrnl. Paleontol. 70 494 The braincase has very thick lateral walls, and a well-developed postfrontal foramen. 2. Anatomy. Situated in the posterior part of the frontal lobe of the brain. ΘΚΠ the world > life > the body > nervous system > cerebrospinal axis > brain > parts of brain > [adjective] > lobe rhinencephalic1846 postnasal1859 parietal1861 prefrontal1878 postrhinal1880 postfrontal1883 suboccipital1885 insular1886 transfrontal1889 preoptic1890 premotor1923 1883 Proc. Royal Soc. 36 223 Lesions of the frontal region vary accordingly as they affect the post-frontal (base of the frontal convolutions) or pre-frontal (anterior two-thirds of the frontal convolutions) region. 1899 T. C. Allbutt et al. Syst. Med. VII. 273 The frontal lobe..must be divided into a prefrontal and a post-frontal area. 1966 Science 29 Apr. 609/1 Bursts of 13- to 15-cycle-per-second waves were seen in most of the infants over postfrontal and parietal areas. 1979 Philos. Trans. (Royal Soc.) B. 285 327 These post-frontal cells around the back of the superior frontal lobe thus seem to collect influences by dendrites extending among the fibres. B. n. Zoology. A bone forming part of the posterior rim of the orbit of the eye in some reptiles, amphibians, and fishes. ΘΚΠ the world > animals > animal body > general parts > constituent materials > [noun] > bone at orbit of eye angular1802 postfrontal1840 the world > life > the body > structural parts > bone or bones > skull > parts of skull > [noun] > front of skull > frontal bone coronalc1400 brow-bonec1450 coronal bone1543 os frontis1578 postfrontal1840 bar of Michael Angelo1850 frontal1854 1840 R. Owen in Rep. Brit. Assoc. Advancem. Sci. 1839 54 The zygomatic element of the temporal bone..stretches horizontally from the malar and the post-frontal backwards. 1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 194 The post-frontal..is a moderately long trihedral bone, articulated by its expanded cranial end to the frontal and parietal. 1873 St. G. Mivart Lessons Elem. Anat. iii. 101 A bone exists in the skull of osseous Fishes which has often been called the ‘post-frontal’. 1936 Philos. Trans. (Royal Soc.) B. 226 14 In the upper part of the section we see the frontals, post-frontals, and post-orbitals cut across. 1958 W. E. Swinton Fossil Amphibians & Reptiles (ed. 2) vi. 27 (caption) E, Parapsid skull (Ichthyosaurs, Squamata); squamosal and postorbital separated from opening by the supratemporal and postfrontal. 2000 Science (Nexis) 3 Nov. 969 A long, narrow, boomerang-shaped postfrontal wraps around the posterodorsal margin of the orbit. This entry has been updated (OED Third Edition, December 2006; most recently modified version published online March 2022). < adj.n.1840
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