NOCTILUCENT Meaning of NOCTILUCENT in English noctilucent BrE AmE ˌnɒkt ɪ ˈluːs ə nt § -ə-, -ˈljuːs- AmE ˌnɑːkt ə- Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012