1
- sending out light; shining or glowing brightly发光的; 明亮的, 光辉灿烂的：
a bird with radiant green and red plumage.
绿红相间羽毛鲜亮的鸟。
1.1
- (of a person or their expression) clearly emanating great joy, love, or health（人, 表情）喜气洋洋的; 洋溢着爱的; 光华照人的：
she gave him a radiant smile.
她对他粲然一笑。
1.2
- (of an emotion or quality) emanating powerfully from someone or something: very intense or conspicuous（情感, 品质）强烈的; 显眼的, 显著的, 出色的：
he praised her radiant self-confidence.
她充满自信, 对此他给予了赞扬。
2
- attrib.(of electromagnetic energy, especially heat) transmitted by radiation, rather than conduction or convection（电磁能, 尤指热能）辐射传输的。
2.1
- (of an appliance) designed to emit such energy, especially for cooking or heating（器具）（尤指为烹饪或加热而）发出辐射热的。
1
- a point or object from which light or heat radiates, especially a heating element in an electric or gas heater辐射源（尤指电热器或气热器的产热部分）。
1.1
- Astronomy a radiant point【天文】辐射点。
派生词
radiancy
nounradiantly
adverb词源
late Middle English: from Latin radiant- 'emitting rays', from the verb radiare （see RADIATE）.