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hydroscope

[ hahy-druh-skohp ]

noun

  1. an optical device for viewing objects below the surface of water.


hydroscope

/ ˈhaɪdrəˌskəʊp; ˌhaɪdrəˈskɒpɪk /

noun

  1. any instrument for making observations of underwater objects
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Derived Forms

  • hydroscopic, adjective
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Other Words From

  • hy·dro·scop·ic [hahy-dr, uh, -, skop, -ik], hydro·scopi·cal adjective
  • hy·dro·sco·pic·i·ty [hahy-dr, uh, -skoh-, pis, -i-tee], noun
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Word History and Origins

Origin of hydroscope1

First recorded in 1670–80; hydro- 1 + -scope
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Example Sentences

Hydroscope, hī′dro-skōp, n. a kind of water-clock, consisting of a cylindrical graduated tube, from which the water escaped through a hole in the bottom.

The former was a hydroscope, who fell into convulsions whenever he passed over running water.

The muscles which would contract the fingers upon the arms of the stick, pass the shoulder; and it is worthy of remark that one of the medical men who witnessed the experiments made on Bleton the hydroscope, expressly alludes to a slight rising of the shoulders during the rotation of the divining rod.

He calls it a hydroscope and describes it as having the form and size of a flute, and graduated in such wise that it can be used for determining the density of liquids.

For the preliminary work of treasure finding, he perfected his hydroscope, a kind of sea telescope consisting of a floating platform from which depend a series of tubes ending in a chamber equipped with electric lamps, lenses and reflectors, like so many gigantic eyes through which the observer is able to view the illuminated bottom of bay or ocean.

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