Bolometer
- n. An instrument for measuring minute quantities of radiant heat, especially in different parts of the spectrum; — called also actinic balance, thermic balance.
The word meanings were obtained from OPTED(The Online Plain Text English Dictionary), which is based on “The Project Gutenberg Etext of Webster’s Unabridged Dictionary” which is in turn based on the 1913 US Webster’s Unabridged Dictionary (See Project Gutenburg), as a text file.