Something that is luminous shines or glows in the dark.
例句
The luminous dial on the clock showed five minutes to seven.那只鐘的夜光鐘面顯示時間為6點55分。...one of the most luminous and unstable stars in our Galaxy.銀河系里最明亮、最不穩定的恒星之一
英漢詞典釋義
adj.
夜光的;發光的;發亮的; 光明的
Most clocks and watches in this shop are in luminous paint.這家商店出售的大多數鐘表都涂了發光漆。There are luminous knobs on all the doors in my house.我家所有門上都安有夜光把手。
英英詞典釋義
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"