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radiometer |
2 definitions found From Webster's Revised Unabridged Dictionary (1913) [web1913]: Radiometer \Ra`di*om"e*ter\, n. [L. radius radius + -meter: cf F. radiom[`e]tre.] 1. (Naut.) A forestaff. 2. (Physics) An instrument designed for measuring the mechanical effect of radiant energy. Note: It consists of a number of light discs, blackened on one side placed at the ends of extended arms, supported on an a pivot in an exhausted glass vessel. When exposed to rays of light or heat, the arms rotate. From WordNet r 1.6 [wn]: radiometer n 1: instrument to detect and measure acoustic radiation 2: instrument to detect and measure electromagnetic radiation
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