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, adjective ac·ti·nom·e·try, noun

Words nearby actinometer

actinoid, actinolite, actinology, actinomadura, actinomere, actinometer, actinomorphic, actinomyces, actinomyces bovis, actinomyces israelii, actinomycetaceae

Words related to actinometer

photometer, radiometer

Example sentences from the Web for actinometer

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, adjective actinometry, noun

Scientific definitions for actinometer

actinometer
[ ăk′tə-nŏm′ĭ-tər ]

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