NOCTILUCENT CLOUD


Meaning of NOCTILUCENT CLOUD in English

[ ˌnɒktɪ'lu:s(ə)nt ]

■ noun a high, luminous cloud seen at night, especially in summer in high latitudes.

Origin

C19: from L. nox , noct- 'night' + lucere 'to shine' + -ent .

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.