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thermo-hygrograph
thermo-hygrograph n. 
/ˌθəːmə(ʊ)ˈhʌɪɡrəɡraf/,
Brit. /ˌθəːmə(ʊ)ˈhʌɪɡrəɡrɑːf/
, /ˌθəːmə(ʊ)ˈhʌɪɡrəɡrɑːf//ˌθəːmə(ʊ)ˈhʌɪɡrəɡraf/U.S. /ˌθərmoʊˈhaɪɡrəˌɡræf/
a combined instrument recording the temperature and the humidity of the air. [After German Thermohygrograph (1875 or earlier).] /ˌθərmoʊˈhaɪɡrəˌɡræf/<
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