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idiometer

noun
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id·​i·​om·​e·​ter | \ ˌidēˈämətə(r) \

Definition of idiometer

: an instrument for ascertaining the personal equation of an astronomical observer

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First Known Use of idiometer

1881, in the meaning defined above

History and Etymology for idiometer

idio- + -meter

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Time Traveler for idiometer

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The first known use of idiometer was in 1881

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Cite this Entry

“Idiometer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/idiometer. Accessed 26 Jan. 2021.

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