luminary
/ˈljuːmɪnərɪ/noun
(pl. -ies)
1
- a person who inspires or influences others, especially one prominent in a particular sphere杰出人物, 泰斗; 才智出众的人：
one of the luminaries of child psychiatry.
一位儿童精神病学的专家。
2
- an artificial light人造光源。
2.1
- poetic/literary a natural light-giving body, especially the sun or moon〈诗/文〉发光天体（尤指太阳、月亮）。
词源
late Middle English: from Old French luminarie or late Latin luminarium, from Latin lumen, lumin- 'light'.