noctilucent

== English == === Etymology === From nocti- +‎ lucent. === Adjective === noctilucent (comparative more noctilucent, superlative most noctilucent) (meteorology) Shining or glowing at night, especially of very high-altitude clouds that reflect sunlight long after sunset; nightshining. === Derived terms === noctilucent cloud ==== Translations ====