Something that is luminous shines or glows in the dark.
例句
The luminous dial on the clock showed five minutes to seven.那只钟的夜光钟面显示时间为6点55分。...one of the most luminous and unstable stars in our Galaxy.银河系里最明亮、最不稳定的恒星之一
英汉词典释义
adj.
夜光的;发光的;发亮的; 光明的
Most clocks and watches in this shop are in luminous paint.这家商店出售的大多数钟表都涂了发光漆。There are luminous knobs on all the doors in my house.我家所有门上都安有夜光把手。
英英词典释义
Adjective
1. softly bright or radiant;
"a house aglow with lights""glowing embers""lambent tongues of flame""the lucent moon""a sky luminous with stars"