shade-readingn. the indication of a thermometer protected from direct influence of the sun's rays.
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the world > matter > properties of materials > temperature > measurement of temperature > [noun] > instrument > specific degrees on a thermometer > indication of protected thermometer
screen temperature1884
shade-reading1897
1897 Philadelphia Inquirer 21 Sept. 5/2 There was no shade reading below 40 deg. reported.