actinometer
Word Rarity
Very rare
Frequency: 0.00 in modern English
15
Scrabble Score
11
Letters
3
Syllables
9
Unique Chars
Meaning
noun
An instrument used to measure the heating power of electromagnetic radiation, especially that of solar radiation.
Etymology
Etymology tree Ancient Greek ᾰ̓κτῑ́ς (ăktī́s)der. English actino- Proto-Indo-European *meh₁- Proto-Indo-European *-tḗr Proto-Indo-European *-trom Proto-Hellenic *-tron Ancient Greek -τρον (-tron) Ancient Greek μέτρον (métron)lbor. French -mètrebor. English -meter English actinometer From actino- + -meter.