放ほう熱ねつ性せいMeaningsNoun1. heat dissipationKanji used放release熱heat性nature (of a person)Composed of放ほう熱ねつradiant heat; heat radiation; heat dissipation; thermolysisNoun性せいnature (of a person); sex; gender; sex (i.e. sexual attraction, activity, etc.); -ty; -ity; -ness; -cyNoun