nosloyw

Welsh

Etymology

From nos (“night”) +‎ gloyw (“bright, shining; lucid”).

Pronunciation

• (South Wales) IPA^(key): /noːsˈlɔi̯.u/

Adjective

nosloyw (feminine singular nosloyw, plural nosloyw, not comparable, not mutable)

1. noctilucent
   • (Can we date this quote?), (Please provide the book title or journal name):

     Nid cymylau cyffredin yw'r rhai sydd i'w gweld yn y pellter ond cymylau nosloyw (noctulucent) - cymylau sy'n cael eu ffurfio o lwch sêr gwib neu o lygredd

     Those visible in the distance are not ordinary clouds but noctilucent clouds - clouds formed from meteor dust or pollution