actinometer

[ ak-tuh-nom-i-ter ]

/ ˌæk təˈnɒm ɪ tər /

SEE SYNONYMS FOR actinometer ON THESAURUS.COM

noun

a device for measuring intensity of radiation, especially that of the sun.

Compare actinograph.

Origin of actinometer

First recorded in 1825–35; actino- + -meter

OTHER WORDS FROM actinometer

ac·tin·o·met·ric

[ak-tin-oh-me-trik, ak-tuh-noh-], /ækˌtɪn oʊˈmɛ trɪk, ˌæk tə noʊ-/, ac·tin·o·met·ri·cal, adjectiveac·ti·nom·e·try, noun

Words nearby actinometer

actinoid, actinolite, actinology, Actinomadura, actinomere, actinometer, actinomorphic, actinomyces, Actinomyces bovis, Actinomyces israelii, Actinomycetaceae

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for actinometer

A very suitable instrument for timing the exposure of carbon tissue is Sawyer's actinometer.
Photogravure|Henry R. Blaney
The actinometer indicated an exposure of thirty seconds where in good light one would be right.
Scientific American Supplement, No. 492, June 6, 1885|Various
It is a good plan to employ an actinometer to judge the correct exposure.
Photographic Amusements, Ninth Edition|Walter E. Woodbury and Frank R. Fraprie
You may sometimes find that the actinometer indicates a very different exposure from what the eye would lead you to expect.
Scientific American Supplement, No. 492, June 6, 1885|Various

For judging long exposures, the use of an actinometer (issued in many inexpensive forms) is helpful.
How to Observe in Archaeology|Various

British Dictionary definitions for actinometer

actinometer

/ (ˌæktɪˈnɒmɪtə) /

noun

an instrument for measuring the intensity of radiation, esp of the sun's rays

Derived forms of actinometer

actinometric (ˌæktɪnəʊˈmɛtrɪk) or actinometrical, adjectiveactinometry, noun

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

Scientific definitions for actinometer

actinometer

[ ăk′tə-nŏm′ĭ-tər ]

Any of several instruments used to measure radiation, such as a pyrheliometer.

单词	actinometer
释义	actinometer [ ak-tuh-nom-i-ter ] / ˌæk təˈnɒm ɪ tər / SEE SYNONYMS FOR actinometer ON THESAURUS.COM noun a device for measuring intensity of radiation, especially that of the sun. Compare actinograph. Origin of actinometer First recorded in 1825–35; actino- + -meter OTHER WORDS FROM actinometer ac·tin·o·met·ric [ak-tin-oh-me-trik, ak-tuh-noh-], /ækˌtɪn oʊˈmɛ trɪk, ˌæk tə noʊ-/, ac·tin·o·met·ri·cal, adjectiveac·ti·nom·e·try, noun Words nearby actinometer actinoid, actinolite, actinology, Actinomadura, actinomere, actinometer, actinomorphic, actinomyces, Actinomyces bovis, Actinomyces israelii, Actinomycetaceae Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for actinometer A very suitable instrument for timing the exposure of carbon tissue is Sawyer's actinometer. Photogravure\|Henry R. Blaney The actinometer indicated an exposure of thirty seconds where in good light one would be right. Scientific American Supplement, No. 492, June 6, 1885\|Various It is a good plan to employ an actinometer to judge the correct exposure. Photographic Amusements, Ninth Edition\|Walter E. Woodbury and Frank R. Fraprie You may sometimes find that the actinometer indicates a very different exposure from what the eye would lead you to expect. Scientific American Supplement, No. 492, June 6, 1885\|Various For judging long exposures, the use of an actinometer (issued in many inexpensive forms) is helpful. How to Observe in Archaeology\|Various British Dictionary definitions for actinometer actinometer / (ˌæktɪˈnɒmɪtə) / noun an instrument for measuring the intensity of radiation, esp of the sun's rays Derived forms of actinometer actinometric (ˌæktɪnəʊˈmɛtrɪk) or actinometrical, adjectiveactinometry, noun 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 Words related to actinometer exposure meter, photometer, radiometer Scientific definitions for actinometer actinometer [ ăk′tə-nŏm′ĭ-tər ] Any of several instruments used to measure radiation, such as a pyrheliometer. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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actinometer

noun

Origin of actinometer

OTHER WORDS FROM actinometer

Words nearby actinometer

Example sentences from the Web for actinometer

British Dictionary definitions for actinometer

noun

Derived forms of actinometer

Words related to actinometer

Scientific definitions for actinometer