熱ねつ拡かく散さんMeaningsNoun1. thermal diffusionKanji used熱heat拡expand horizontally散scatter aroundPitch accentねつかくさんComposed of熱ねつheat; fever; temperature; zeal; passion; enthusiasm; mania; craze; rageNoun拡かく散さんspreading; disseminating; scattering; diffusion (of light, gas)Noun