preorbitaladj.n.

Brit.

/priːˈɔːbᵻtl/, U.S.

/priˈɔrbəd(ə)l/

Forms: 1800s praeorbital, 1800s– preorbital.

Origin: Formed within English, by derivation. Etymons: pre- prefix, orbital adj.

Etymology: < pre- prefix + orbital adj. Compare earlier postorbital adj. With use as noun compare earlier postorbital n.

A. adj.

Zoology and Anatomy. Situated in front of or on the anterior part of the orbit of the eye.

ΘΚΠ

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

orbital?1541

orbitary1703

superciliary1704

orbitar1726

suborbitary1733

infra-orbitar1741

supraorbital1767

supraorbitar1775

supra-orbitary1794

suborbitar1797

suborbital1803

infra-orbital1806

infra-orbitary1822

lachrymonasal1837

interorbital1852

preorbital1852

transorbital1852

orbitosphenoid1854

exorbital1876

periorbital1890

1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 93 Præorbital tooth acute.

1881 St. G. Mivart Cat 64 Each frontal bifurcates laterally into a sharp pointed ‘nasal process’ and a more obtuse ‘pre-orbital process’.

1958 W. E. Swinton Fossil Amphibians & Reptiles (ed. 2) iv. 18 (caption) To show relative proportions of preorbital and postorbital regions, and positions of nostrils.

1980 R. Rhodes Last Safari i. v. 84 The older bulls..rubbed their muzzles on the ground drawing boundaries of scent with their preorbital glands.

1999 Ophthalmology 106 753/2 Cases of cheek, forehead or brow tumors that have enlarged over the adjacent preorbital skin and muscle.

B. n.

Zoology. A preorbital bone, process, etc.; spec. a bone in front of the orbit of the eye in many fishes, amphibians, and reptiles. Cf. prefrontal n.

ΚΠ

1857 S. F. Baird Reptiles of Boundary (U.S. Dept. of Interior: Rep. on U.S. & Mexican Boundary Surv.) 21 Anterior edge of pre-orbitals concave, to receive the convex upper edge of the nasal.

1897 Günther in M. Kingsley W. Africa App. iii. 709 Præorbital about half the area of the orbit.

2000 Marine Fisheries Rev. (Nexis) 22 Mar. 1 First suborbital margined with several small spines; lower border of preorbital with two very strong, sharp bifid spines.

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

单词	preorbital
释义	preorbitaladj.n. Brit. /priːˈɔːbᵻtl/, U.S. /priˈɔrbəd(ə)l/ Forms: 1800s praeorbital, 1800s– preorbital. Origin: Formed within English, by derivation. Etymons: pre- prefix, orbital adj. Etymology: < pre- prefix + orbital adj. Compare earlier postorbital adj. With use as noun compare earlier postorbital n. A. adj. Zoology and Anatomy. Situated in front of or on the anterior part of the orbit of the eye. ΘΚΠ the world > life > the body > structural parts > bone or bones > skull > parts of skull > [adjective] > socket of eye orbital?1541 orbitary1703 superciliary1704 orbitar1726 suborbitary1733 infra-orbitar1741 supraorbital1767 supraorbitar1775 supra-orbitary1794 suborbitar1797 suborbital1803 infra-orbital1806 infra-orbitary1822 lachrymonasal1837 interorbital1852 preorbital1852 transorbital1852 orbitosphenoid1854 exorbital1876 periorbital1890 1852 J. D. Dana U.S. Exploring Exped.: Crustacea Pt. I 93 Præorbital tooth acute. 1881 St. G. Mivart Cat 64 Each frontal bifurcates laterally into a sharp pointed ‘nasal process’ and a more obtuse ‘pre-orbital process’. 1958 W. E. Swinton Fossil Amphibians & Reptiles (ed. 2) iv. 18 (caption) To show relative proportions of preorbital and postorbital regions, and positions of nostrils. 1980 R. Rhodes Last Safari i. v. 84 The older bulls..rubbed their muzzles on the ground drawing boundaries of scent with their preorbital glands. 1999 Ophthalmology 106 753/2 Cases of cheek, forehead or brow tumors that have enlarged over the adjacent preorbital skin and muscle. B. n. Zoology. A preorbital bone, process, etc.; spec. a bone in front of the orbit of the eye in many fishes, amphibians, and reptiles. Cf. prefrontal n. ΚΠ 1857 S. F. Baird Reptiles of Boundary (U.S. Dept. of Interior: Rep. on U.S. & Mexican Boundary Surv.) 21 Anterior edge of pre-orbitals concave, to receive the convex upper edge of the nasal. 1897 Günther in M. Kingsley W. Africa App. iii. 709 Præorbital about half the area of the orbit. 2000 Marine Fisheries Rev. (Nexis) 22 Mar. 1 First suborbital margined with several small spines; lower border of preorbital with two very strong, sharp bifid spines. This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022). < adj.n.1852
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