radiant
https://gyazo.com/308ad593feb9cfce5dff9b9d2e92b63b
adjective
〖通例名詞の前で〗光を放つ, 明るく輝く〈太陽･宝石など〉
e.g. a bird with radiant green and red plumage.
〈人･顔･目などが〉 «…で» 晴れやかな, 幸せそうな, 輝くような «with»
e.g. she gave him a radiant smile.
e.g. he praised her radiant self-confidence.
〖通例名詞の前で〗〘物理〙 放射の〈光･熱など〉
e.g. plants convert the radiant energy of the sun into chemical energy.
放射熱を用いた〈暖房など〉
e.g. a radiant heater.
noun
a point or object from which light or heat radiates, especially a heating element in an electric or gas heater:
e.g. I sat down by my hissing gas fire—one of the radiants was missing.
DERIVATIVES
ORIGIN