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单词 megascopically
释义

megascopicallyadv.

Brit. /ˌmɛɡəˈskɒpᵻkli/, U.S. /ˌmɛɡəˈskɑpək(ə)li/
Origin: Formed within English, by derivation. Etymons: megascopic adj., -ally suffix.
Etymology: < megascopic adj. + -ally suffix, after microscopically adv. or macroscopically adv. Compare megascopical adj. at megascopic adj. Derivatives.
Chiefly Geology.
By or to the naked eye; macroscopically.
ΘΚΠ
the world > physical sensation > sight and vision > optical skills and techniques > [adverb] > use of instruments
megascopically1890
ultramicroscopically1906
1890 Cent. Dict. Megascopically, by the naked eye; by superficial inspection as distinguished from minute or microscopic inspection.
1894 H. S. Washington Volcanoes Kula Basin 21 Megascopically it is much more frequent and prominent than either the augite or the olivine.
1909 J. P. Iddings Igneous Rocks I. ii. iii. 445 Coarse-grained rocks..must be measured megascopically on the surface of proper-sized specimens.
1943 Amer. Mineralogist 28 499 The material under the botryoidal surface is also megascopically crystalline.
1988 Nature 8 Dec. 572/1 Megascopically the clast lacks a distinctive structure, but under the microscope a few diffuse rounded bodies..can be discerned.
This entry has been updated (OED Third Edition, June 2001; most recently modified version published online March 2022).
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adv.1890
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