英语词汇radiometric的起源、历史背景-英语词源词典

词汇	radiometric
词源	radiometric adj. "pertaining to the radiometer or to experiments performed by it," 1877, from radiometer "instrument to transform radiant energy into mechanical work" (1875), radiometry, from radio-, here indicating "radiant energy," + -metric. Previously radiometer was the name of an old cross-staff instrument for measuring angles. Radiometric dating is attested from 1906. Entries linking to radiometric radio- word-forming element meaning 1. "ray, ray-like" (see radius); 2. "radial, radially" (see radial (adj.)); 3. "by means of radiant energy" (see radiate (v.)); 4. "radioactive" (see radioactive); 5. "by radio" (see radio (n.)). -metric word-forming element representing -metry + -ic. updated on March 25, 2021
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radiometric adj.