actinometer

名词 n.

英文释义

名词 n.
  1. An instrument used to measure the heating power of electromagnetic radiation, especially that of solar radiation.

词形变化

actinometers plural

词源

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)der.
English -meter
English actinometer
From actino- + -meter.
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