surficialadj.

Brit.

/səːˈfɪʃl/, U.S.

/sərˈfɪʃ(ə)l/

Origin: A variant or alteration of another lexical item. Etymon: superficial adj.

Etymology: Alteration of superficial adj. after surface n.

Originally: of or relating to the surface of the earth (cf. superficial adj. 3a). In later use: of or relating to any surface.

ΘΚΠ

the world > the earth > surface of the earth > [adjective]

surficial1892

1892 J. D. Dana in Amer. Jrnl. Sci. 144 166 The outflow retains a thickness of 250 feet quite to its extreme western limit, which it could not have done if it had been a subaerial, or, using a much needed new word, a surficial flow.

1903 W. H. Hobbs in Science 23 Oct. 538/2 The term physiography..is inclusive of glacial geology; and..is sometimes referred to as superficial or surficial geology.

1926 G. W. Tyrrell Princ. Petrol. vi. 106 The rocks of dykes, sills, and small laccoliths..occupy an intermediate position in the crust between the deepseated plutonic bodies, and the surficial lava flows.

1967 G. L. Hoffman Parasites N. Amer. Freshwater Fishes 224 Genital apertures surficial in some families, marginal or submarginal in others.

1981 J. E. Costa & V. R. Baker Surficial Geol. ii. 25/2 Both surficial and bedrock geologic maps can be used to identify and classify materials, hazards, and resources.

1992 S. P. Maran Astron. & Astrophysics Encycl. 947/2 Only two surficial mass transport processes are probable on the Venus surface.

1993 W. G. Gray et al. Math. Tools for changing Spatial Scales ii. 24 A final set of identities..relates a surficial divergence to a curvilineal divergence when the curve lies in the surface.

2002 S. J. Gould Struct. Evolutionary Theory xii. 1306 Luis proposed a measurement of iridium, an element virtually absent from the earth's indigenous surficial rocks.

Derivatives

surˈficially adv. on, from, or at the surface, esp. the surface of the earth.

ΘΚΠ

the world > the earth > surface of the earth > [adverb]

surficially1895

1895 J. D. Dana Man. Geol. (ed. 4) iv. 806 The trap was poured out surficially from fissures along the eastern margin of the area.

1919 A. R. Cooper N. Amer. Pseudophyllidean Cestodes 12 Scolex large, terminal disc deeply notched surficially.

1971 Nature 2 July 41/1 In the theory of plate tectonics convergent plate junctures are the loci of orogeny, marked surficially by arc-trench systems.

1979 R. K. Godfrey & J. W. Wooten Aquatic & Wetland Plants Southeastern U.S.: Monocotyledons 102 Leaf sheaths glabrous or ciliate on the margins, the blades very finely scabrid surficially.

2009 L. A. Morgan et al. Hydrothermal Processes above Yellowstone Magma Chamber 69/2 Fragments associated with collapsed craters are surficially derived.

This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).

单词	surficial
释义	surficialadj. Brit. /səːˈfɪʃl/, U.S. /sərˈfɪʃ(ə)l/ Origin: A variant or alteration of another lexical item. Etymon: superficial adj. Etymology: Alteration of superficial adj. after surface n. Originally: of or relating to the surface of the earth (cf. superficial adj. 3a). In later use: of or relating to any surface. ΘΚΠ the world > the earth > surface of the earth > [adjective] surficial1892 1892 J. D. Dana in Amer. Jrnl. Sci. 144 166 The outflow retains a thickness of 250 feet quite to its extreme western limit, which it could not have done if it had been a subaerial, or, using a much needed new word, a surficial flow. 1903 W. H. Hobbs in Science 23 Oct. 538/2 The term physiography..is inclusive of glacial geology; and..is sometimes referred to as superficial or surficial geology. 1926 G. W. Tyrrell Princ. Petrol. vi. 106 The rocks of dykes, sills, and small laccoliths..occupy an intermediate position in the crust between the deepseated plutonic bodies, and the surficial lava flows. 1967 G. L. Hoffman Parasites N. Amer. Freshwater Fishes 224 Genital apertures surficial in some families, marginal or submarginal in others. 1981 J. E. Costa & V. R. Baker Surficial Geol. ii. 25/2 Both surficial and bedrock geologic maps can be used to identify and classify materials, hazards, and resources. 1992 S. P. Maran Astron. & Astrophysics Encycl. 947/2 Only two surficial mass transport processes are probable on the Venus surface. 1993 W. G. Gray et al. Math. Tools for changing Spatial Scales ii. 24 A final set of identities..relates a surficial divergence to a curvilineal divergence when the curve lies in the surface. 2002 S. J. Gould Struct. Evolutionary Theory xii. 1306 Luis proposed a measurement of iridium, an element virtually absent from the earth's indigenous surficial rocks. Derivatives surˈficially adv. on, from, or at the surface, esp. the surface of the earth. ΘΚΠ the world > the earth > surface of the earth > [adverb] surficially1895 1895 J. D. Dana Man. Geol. (ed. 4) iv. 806 The trap was poured out surficially from fissures along the eastern margin of the area. 1919 A. R. Cooper N. Amer. Pseudophyllidean Cestodes 12 Scolex large, terminal disc deeply notched surficially. 1971 Nature 2 July 41/1 In the theory of plate tectonics convergent plate junctures are the loci of orogeny, marked surficially by arc-trench systems. 1979 R. K. Godfrey & J. W. Wooten Aquatic & Wetland Plants Southeastern U.S.: Monocotyledons 102 Leaf sheaths glabrous or ciliate on the margins, the blades very finely scabrid surficially. 2009 L. A. Morgan et al. Hydrothermal Processes above Yellowstone Magma Chamber 69/2 Fragments associated with collapsed craters are surficially derived. This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022). < adj.1892
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