| 释义 | non-luminous adjective
 chemistry, physics specialized(alsononluminous)uk /ˌnɒnˈluː.mɪ.nəs/ us /ˌnɑːnˈluː.mə.nəs/
 not producing or reflecting bright light: 不发出或反射强光的
 A planet is a nonluminous body gravitationally bound to the Sun or a star. 行星是被太阳或恒星引力束缚的非发光天体。
 If we place a wire-gauze cap over the gas jet, it burns with a non-luminous flame.
 A small amount of a salt is heated in a non-luminous Bunsen flame.
 Non-luminous objects do not have their own source of light energy and hence cannot emit light.
 This difference is much greater in the luminous rays of light than in the non-luminous.
 SMART Vocabulary: related words and phrases
 Giving out light
 afire
 albedo
 aura
 backlit
 beam
 beamy
 bioluminescence
 flicker
 gleam
 glimmer
 glitter
 luminously
 noctilucent
 non-glare
 out-glitter
 overlit
 reflected ray
 shine
 spotlight
 wink
 
 You can also find related words, phrases, and synonyms in the topics: Darkness & becoming dark
 
 |