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单词 phototachometrical
释义

phototachometricaladj.

Origin: Formed within English, by compounding. Etymons: phototachometer n., -metrical comb. form.
Etymology: < phototacho- (in phototachometer n.) + -metrical comb. form. Compare slightly later phototachometric adj. and earlier phototachymetrical adj.
Physics. rare. Apparently only attested in dictionaries or glossaries.
= phototachometric adj.
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the world > matter > physics > electromagnetic radiation > light > emission of light, radiation > [adjective] > measuring speed of light
phototachometrical1890
eikonal1952
1890 Cent. Dict. Phototachometrical, pertaining to phototachometry.
This entry has been updated (OED Third Edition, March 2006; most recently modified version published online June 2021).
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adj.1890
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