Ma'anar ƙamus na kalmar "infrared emission" yana nufin tsarin da wani abu ke fitar da hasken lantarki a cikin yankin infrared na electromagnetic spectrum. Fitar da infrared al'amari ne na halitta wanda ke faruwa a lokacin da yanayin yanayin abu ya wuce cikakken sifili. A wannan zafin jiki, kwayoyin halitta da kwayoyin halitta suna rawar jiki, suna haifar da igiyoyin lantarki da za a iya gano su azaman infrared radiation. Ana amfani da iskar infrared a aikace-aikace iri-iri, gami da hoto na thermal, hangen nesa, da spectroscopy.