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hydroscope

American  
[hahy-druh-skohp] / ˈhaɪ drəˌskoʊp /

noun

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


hydroscope British  
/ 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

Other Word Forms

Derived Forms

Etymology

Origin of hydroscope

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It might be said that he divined the course of seams in the depths of the coal mine as a hydroscope reveals springs in the bowels of the earth.

From The Underground City, or, the Child of the Cavern by Verne, Jules

It looks to me through the hydroscope, at this distance, exactly like a tiny, silvery minnow.

From Police!!! by Hutt, Henry

Brown had lugged the pneumatic raft down to the shore where he was now pumping it full: I followed with the paddles, pole, and hydroscope.

From Police!!! by Hutt, Henry

Later I heard him clamping the hood on the hydroscope; but I was too disgusted for any further words, and I dug away at the water with my paddle.

From Police!!! by Hutt, Henry

At first I scarcely noticed them, supposing them to be vast beds of silvery bottom sand glittering under the electric pencil of the hydroscope.

From Police!!! by Hutt, Henry

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