单词 | superorbital |
释义 | superorbitaladj.n. A. adj. 1. Anatomy and Zoology. Situated above the orbit of the eye. ΚΠ 1821 Med. Repository New Ser. 6 134 Violent pain of the head, chiefly super-orbital, with a dull haggard appearance of the eyes..and vomiting, quickly succeeded. 1849 H. M. Noad Lect. Electr. (ed. 3) 238 The super-orbital nerve was laid bare in the forehead, as it issues through the supraciliary foramen in the eyebrow. 1927 Amer. Anthropologist 29 198 The forehead slopes strongly as in others of its kind and the superorbital ridges are prominent. 2000 F. Ankel-Simons Primate Anat. (ed. 2) iv. 131 There is a marked superorbital torus above the eyes. 2. Astronautics. Of or relating to a spacecraft that travels beyond earth orbit. ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > spacecraft > [adjective] > type of spacecraft superorbital1959 man-rated1967 sortie1972 1959 Michigan State Bar Jrnl. Mar. 22/2 Once a craft has entered upon an orbital or super-orbital trajectory its momentum or inertia will exactly balance or exceed the attracting force of the earth's gravitational field. 1990 R. E. Willes et al. in B. D. Tapley Eschbach's Handbk. Engin. Fund. (ed. 4) vi. 6-145 The objectives of atmospheric entry are to decelerate a space vehicle from orbital or superorbital velocities with acceptable aerodynamic and heating loads. 2009 tr. W. Ley et al. Handbk. Space Technol. ii. 85/1 Related to the different mission profiles, a distinction is made between orbital and superorbital reentry. 3. Astronomy. Designating a period of a celestial object that is of an order above that of the orbital period. ΚΠ 1990 W. Kundt Neutron Stars & their Birth Events (NATO Sci. Affairs Div.) 12 The superorbital period may be due to a periodic tilting of the inner accretion disk. 2008 Astrophysical Jrnl. 683 l-55/1 A superorbital ∼290 day period was claimed by Priedhorsky et al. (1983) on the soft X-ray data recorded by Vela 5B..and Ariel 5 AS. B. n. Anatomy and Zoology. A superorbital bone. ΘΚΠ the world > life > the body > structural parts > bone or bones > skull > parts of skull > [noun] > socket of eye > parts of or associated with eyebrow1583 meditullium1683 superciliary ridge1726 superciliary arch1733 supraorbital1797 lacrimal1822 suborbital1824 suborbitary1825 suborbitar1828 superciliary1831 eyebrow ridge1837 eye cap1837 orbitosphenoid1847 prefrontal1851 superorbital1854 jugum sphenoidale1887 ungual bone1888 1854 R. Owen Struct. Skeleton & Teeth in Orr's Circle Sci.: Org. Nature I. 212 Both the lacrymal and superorbital bones answer to a series of bones found commonly in fishes, and called ‘suborbitals’ and ‘superorbitals’. 1884 E. Coues Key to N. Amer. Birds (ed. 2) ii. 166 Were such a chain of splint-bones complete (lacrymal, superorbitals, post-frontal, and squamosal, to quadrate), it would form an arcade of bones over the orbit. 1982 Curr. Anthropol. 23 684/2 The arches appear to thin laterally, but it is difficult to determine to what extent because the lateral parts of both sides of the superorbitals are damaged. This entry has been updated (OED Third Edition, June 2012; most recently modified version published online March 2022). < adj.n.1821 |
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