phototachymetricaladj.

Brit.

/ˌfəʊtəʊtakɪˈmɛtrᵻkl/, U.S.

/ˈˌfoʊdəˌtækəˈmɛtrək(ə)l/

Origin: Formed within English, by compounding. Etymons: photo- comb. form, tachy- comb. form, -metrical comb. form.

Etymology: < photo- comb. form + tachy- comb. form + -metrical comb. form. Compare slightly later phototachometer n. 1, phototachometrical adj.

Physics. rare.

Relating to or involving the measurement of the speed of light.

ΚΠ

1882 Nature 30 Nov. 117/2 The solar parallax..cannot be regarded as exactly known until the results obtained from trigonometrical..and phototachymetrical methods are in perfect harmony.

This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022).

单词	phototachymetrical
释义	phototachymetricaladj. Brit. /ˌfəʊtəʊtakɪˈmɛtrᵻkl/, U.S. /ˈˌfoʊdəˌtækəˈmɛtrək(ə)l/ Origin: Formed within English, by compounding. Etymons: photo- comb. form, tachy- comb. form, -metrical comb. form. Etymology: < photo- comb. form + tachy- comb. form + -metrical comb. form. Compare slightly later phototachometer n. 1, phototachometrical adj. Physics. rare. Relating to or involving the measurement of the speed of light. ΚΠ 1882 Nature 30 Nov. 117/2 The solar parallax..cannot be regarded as exactly known until the results obtained from trigonometrical..and phototachymetrical methods are in perfect harmony. This entry has been updated (OED Third Edition, March 2006; most recently modified version published online March 2022). < adj.1882
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