Etymology: thermoelement + galvanometer
: a thermoammeter for small currents usually consisting of a thermoelement and a direct-current galvanometer
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/therr'moh gal'veuh nom"i teuhr/, n. Elect.
a thermoammeter for measuring small currents, consisting of a thermocouple connected to a direct-current galvanometer.
[1865-70; THERMO- + GALVANOMETER]
Useful english dictionary. 2012.