actinometrical

actinometer

[ak-tuh-nom-i-ter]
noun
a device for measuring intensity of radiation, especially that of the sun.
Compare actinograph.


Origin:
1825–35; actino- + -meter

actinometric [ak-tin-oh-me-trik, ak-tuh-noh-] , actinometrical, adjective
actinometry, noun
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Collins
World English Dictionary
actinometer (ˌæktɪˈnɒmɪtə)
 
n
an instrument for measuring the intensity of radiation, esp of the sun's rays
 
actinometric
 
adj
 
actino'metrical
 
adj
 
acti'nometry
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Science Dictionary
actinometer   (āk'tə-nŏm'ĭ-tər)  Pronunciation Key 
Any of several instruments used to measure radiation, such as a pyrheliometer.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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