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heliothermometer

Definitions

from The Century Dictionary and Cyclopedia

  • n. An instrument for determining the intensity of solar radiation: usually a black-bulb thermometer inclosed in a glass-covered case internally blackened.

Etymologies

Sorry, no etymologies found.

Examples

  • Horace Bénédict de Saussure (1740-1799), a Swiss physicist, geologist, and early Alpine explorer, invented the heliothermometer (1767), an instrument for measuring solar radiation.

    De Saussure, Horace Bénédict

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