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noctilucentenUK
noc·ti·lu·cent N0125300 (nŏk′tə-lo͞o′sənt)adj. Luminous at night. Used especially of certain high clouds.noctilucent (ˌnɒktɪˈluːsənt) adj(usually of very thin high-altitude clouds in the summer twilight sky) shining at night ˌnoctiˈlucence nnoc•ti•lu•cent (ˌnɒk təˈlu sənt)
adj. (of high-altitude clouds) visible during the short night of the summer. [1885–90; < Latin nocti- =noct-, s. of nox night + -i- + lucent] noc`ti•lu′cence, n. Thesaurus| Adj. | 1. | noctilucent - shining or glowing by night; "the noctilucent eyes of a cat"bright - emitting or reflecting light readily or in large amounts; "the sun was bright and hot"; "a bright sunlit room" |
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