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mother-of-pearl cloud

mother-of-pearl cloud

9.9
A high cloud that looks shiny with rainbow colors around sunrise or after sunset
  • noun
  • /ˈmʌðər əv pɜrl klaʊd/
translation icon : nube madreperla
  • She captured a photograph of a mother-of-pearl cloud showing brilliant shades of pink and green above the horizon.

Examples

  • A rare mother-of-pearl cloud lit up the northern skies with shimmering colors just after sunset.

  • The mother-of-pearl clouds glowed softly at sunset.

  • Scientists say mother-of-pearl clouds often form in extremely cold stratospheric conditions.

  • Look at that beautiful mother-of-pearl cloud!

  • A rare mother-of-pearl cloud lit up the northern skies with shimmering colors just after sunset.

  • She captured a photograph of a mother-of-pearl cloud showing brilliant shades of pink and green above the horizon.

  • Scientists say mother-of-pearl clouds often form in extremely cold stratospheric conditions.

Synonyms

nacreous cloud
vsmother-of-pearl cloud
  • Specialized
9.9

A bright rainbow-coloured cloud high in the sky seen at twilight

has identical meaning but is a different name for the same cloud

Antonyms

dark cloud
  • Informal
2 4.2

Sadness or worry that affects groups such as families and companies

Surface Forms

Morphology

mother-of-pearl + cloud

The compound is compositionally descriptive — it denotes a cloud that has the pearly, iridescent quality of mother-of-pearl, so if a learner knows the modifier 'mother-of-pearl' the meaning follows straightforwardly with 'cloud'. However, 'mother-of-pearl' itself is a lexicalized phrase whose sense (nacre/pearly iridescence) is not transparently derivable from the words 'mother' + 'pearl' for an average B1 learner, so understanding is only partially predictable without prior exposure.

Etymology

Mother-of-pearl cloud gets its name from the shiny inside of some shells called mother-of-pearl, which show soft rainbow colors. High, thin clouds can glow with the same pearly, changing colors when the sun is just below the horizon, so the phrase means a high cloud that looks 'bright' and 'pearly'.