thermophotovoltaic

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ther·mo·pho·to·vol·ta·ic / ˌ[unvoicedth]ərmōˌfōtōvälˈtā-ik; -vōl-; -vôl-/ • adj. (abbr. TPV) denoting or relating to the capacity to convert infrared radiation (i.e. radiant heat) into electricity.