actinometer
noun Date: 1833 any of various instruments for measuring the intensity of incident radiation; especially one in which the intensity of radiation is measured by the speed of a photochemical reactionactinometric adjectiveactinometry noun

New Collegiate Dictionary. 2001.

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  • Actinometer — Ac ti*nom e*ter, n. [Gr. ?, ?, ray + meter] (a) An instrument for measuring the direct heating power of the sun s rays. (b) An instrument for measuring the actinic effect of rays of light. [1913 Webster] …   The Collaborative International Dictionary of English

  • actinometer — [ak΄tə näm′ət ər] n. 1. Physics an instrument for measuring the intensity of the sun s rays, or the actinic effect of light rays 2. Photog. EXPOSURE METER actinometric [ak΄tənō΄me′trik] adj. actinometry [ak΄tənäm′ə trē] n …   English World dictionary

  • Actinometer — Actinometers are instruments used to measure the heating power of radiation. They are used in meteorology to measure solar radiation as pyrheliometers.An actinometer is a chemical system or physical device which determines the number ofphotons in …   Wikipedia

  • actinometer — actinometric /ak tin oh me trik, ak teuh noh /, actinometrical, adj. actinometry, n. /ak teuh nom i teuhr/, n. a device for measuring intensity of radiation, esp. that of the sun. Cf. actinograph. [1825 35; ACTINO + METER] * * * ▪ chemistry    …   Universalium

  • actinometer — aktinometras statusas T sritis Standartizacija ir metrologija apibrėžtis Saulės ar kitų šviesos šaltinių spinduliuotės stiprio matuoklis, kurio veikimas pagrįstas fotocheminiu spinduliuotės aktyvumu. atitikmenys: angl. actinometer vok.… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • actinometer — aktinometras statusas T sritis fizika atitikmenys: angl. actinometer vok. Aktinometer, n rus. актинометр, m pranc. actinomètre, m …   Fizikos terminų žodynas

  • actinometer — noun A device used to measure the heating power of electromagnetic radiation, especially that of solar radiation See Also: actinometric, actinometry …   Wiktionary

  • Actinometer — Прибор для измерения интенсивности света; Актинометр …   Краткий толковый словарь по полиграфии

  • actinometer — ac·ti·nom·e·ter .ak tə näm ət ər n any of various instruments for measuring the intensity of incident radiation esp one in which the intensity of radiation is measured by the speed of a photochemical reaction ac·ti·no·me·tric nō me trik adj… …   Medical dictionary

  • actinometer — instrument for measuring incident radiation Scientific Instruments …   Phrontistery dictionary

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