tithonometer
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English
[edit]Noun
[edit]tithonometer (plural tithonometers)
- (archaic) An instrument or apparatus for measuring or detecting tithonicity; an actinometer.
References
[edit]- “tithonometer”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.