phototachometricadj.

Origin: Formed within English, by compounding. Etymons: phototachometer n., -metric comb. form.

Etymology: < phototacho- (in phototachometer n.) + -metric comb. form. Compare slightly earlier phototachometrical adj.

Physics. rare. Apparently only attested in dictionaries or glossaries.

Relating to the measurement of the velocity of light.

ΚΠ

1895 I. K. Funk et al. Standard Dict. Eng. Lang. II. at Photo- Phototachometric.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online September 2021).

单词	phototachometric
释义	phototachometricadj. Origin: Formed within English, by compounding. Etymons: phototachometer n., -metric comb. form. Etymology: < phototacho- (in phototachometer n.) + -metric comb. form. Compare slightly earlier phototachometrical adj. Physics. rare. Apparently only attested in dictionaries or glossaries. Relating to the measurement of the velocity of light. ΚΠ 1895 I. K. Funk et al. Standard Dict. Eng. Lang. II. at Photo- Phototachometric. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online September 2021). < adj.1895
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