echometern.

Forms: Also 1700s echometre.

Etymology: < Greek ἦχος sound + -meter comb. form²; in French échomètre (1701).Previous versions of the OED give the stress as: eˈchometer.

(See quot. 1842.) Also, a type of echo-sounder.

ΘΚΠ

society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > depth-finder

depth recorder1911

depth finder1923

Fathometer1925

echo-sounder1927

echometer1937

1736 N. Bailey et al. Dictionarium Britannicum (ed. 2) Echometre.

1842 W. T. Brande Dict. Sci., Lit. & Art 381/1 In Music, a sort of scale or rule, marked with lines, which serve to measure the duration of sounds, and to ascertain their intervals and ratios.

1881 Worcester's Dict. Eng. Lang.

1937 Nature 18 Sept. 499/1 An ‘echometer’ depth sounder.

1937 Nature 25 Sept. 553/2 Another exhibit..shows how one type of echometer can indicate to a trawler the depth of the sea-bed and also that at which a shoal of fish may be passing.

1961 Times 2 June 14/7 Dry-paper recording echometer.

This entry has not yet been fully updated (first published 1891; most recently modified version published online December 2020).

单词	echometer
释义	echometern. Forms: Also 1700s echometre. Etymology: < Greek ἦχος sound + -meter comb. form²; in French échomètre (1701).Previous versions of the OED give the stress as: eˈchometer. (See quot. 1842.) Also, a type of echo-sounder. ΘΚΠ society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > depth-finder depth recorder1911 depth finder1923 Fathometer1925 echo-sounder1927 echometer1937 1736 N. Bailey et al. Dictionarium Britannicum (ed. 2) Echometre. 1842 W. T. Brande Dict. Sci., Lit. & Art 381/1 In Music, a sort of scale or rule, marked with lines, which serve to measure the duration of sounds, and to ascertain their intervals and ratios. 1881 Worcester's Dict. Eng. Lang. 1937 Nature 18 Sept. 499/1 An ‘echometer’ depth sounder. 1937 Nature 25 Sept. 553/2 Another exhibit..shows how one type of echometer can indicate to a trawler the depth of the sea-bed and also that at which a shoal of fish may be passing. 1961 Times 2 June 14/7 Dry-paper recording echometer. This entry has not yet been fully updated (first published 1891; most recently modified version published online December 2020). < n.1736
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