THERMOPILE
\θˈɜːməpˌa͡ɪl], \θˈɜːməpˌaɪl], \θ_ˈɜː_m_ə_p_ˌaɪ_l]\
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An instrument of extreme sensibility, used to determine slight differences and degrees of heat. It is composed of alternate bars of antimony and bismuth, or any two metals having different capacities for the conduction of heat, connected with an astatic galvanometer, which is very sensibly affected by the electric current induced in the system of bars when exposed even to the feeblest degrees of heat.
By Oddity Software
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An instrument of extreme sensibility, used to determine slight differences and degrees of heat. It is composed of alternate bars of antimony and bismuth, or any two metals having different capacities for the conduction of heat, connected with an astatic galvanometer, which is very sensibly affected by the electric current induced in the system of bars when exposed even to the feeblest degrees of heat.
By Noah Webster.
By Willam Alexander Newman Dorland
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