hydroscope

noun

hy·​dro·​scope

: a device for enabling a person to see an object at a considerable distance below the surface of water by means of a series of mirrors enclosed in a steel tube compare water glass

hydroscopic

¦⸗⸗¦skäpik

adjective

or less commonly hydroscopical

-pə̇kəl

Word History

Etymology

International Scientific Vocabulary hydr- + -scope; probably originally formed as Italian idroscopio

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