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cumulus

cumulus

4 4.9
A white fluffy cloud with a flat base that forms low in the sky
  • noun
  • /ˈkjuːmjələs/
translation icon : cumulus
  • A few tiny cumulus clouds appear to the west.
  • cumulus clouds

Examples

  • On the way here, I saw some cumulus clouds.

    Fiction book (1994)
  • All those cloud shapes at the beginning, those were cumulus clouds.

  • Look at these cumulus clouds.

  • Maybe there is a bit of gray out there, and the cumulus clouds are starting to look a little bit black.

    Academic text (2001)
  • In the summertime, you get tall cumulus clouds with heavy rain out the bottom.

  • Large cumulus clouds dotted the horizon, particularly over the peaks of the neighboring islands.

    Fiction book (1991)
  • The sky thinned out blue above me, wrinkling into cumulus banks in the rearview mirror behind me, near the coast.

    Fiction book (1991)
  • September skies are unusually blue with soaring cumulus clouds, so bring your polarizer.

    Academic text (1996)
  • There was a solid undercast a few thousand feet below, and here and there, tall, towering cumulus clouds stretched up to FL500.

    Fiction book (2000)
  • On a sunny day, fluffy cumulus clouds drift lazily across the sky.

Synonyms

cloud
vscumulus
693 1.0

A group of tiny water drops or ice high in the sky

specifies a white fluffy type with rounded, heaped form and low altitude
cumulus cloud
vscumulus
3 3.9

A large white fluffy cloud with a rounded top and flat base often seen in fair weather

focuses on low altitude and heaped, piled-up rounded appearance rather than weather only

Compounds

A large white fluffy cloud with a rounded top and flat base often seen in fair weather

How Fluffy

cumulonimbus
  • Specialized
2 9.7
cumulus
4 4.9
stratus
  • Specialized
1 5.9
cirrus
  • Specialized
2 7.0

Surface Forms

cumulus singular
cumuluses plural
cumulus plural

Etymology

Cumulus comes from the Latin word cumulus meaning 'heap' or 'pile'. So a cumulus cloud is named because it looks like a white, fluffy pile in the sky.