cumulus

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“
The researchers focused their lab studies on the lower 'fair-weather' clouds such as cumulus, which reflect sunlight away from the earth and therefore have a cooling effect.

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Definitions (8)

Toggle American Heritage definitions American Heritage Dictionary (2)

  1. noun A dense, white, fluffy, flat-based cloud with a multiple rounded top and a well-defined outline, usually formed by the ascent of thermally unstable air masses.
  2. noun A pile, mound, or heap.

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Toggle GNU Webster definitions GNU Webster's 1913 (1)

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Examples (50)

  • The massive black cumulus, only four or five hundred feet above, dimmed the air and he revived sufficiently to start the outboard and raise his speed to ten miles per hour. —  The Drowned World
  • The rain finally stopped fifty miles north of Surrey and the cloud cover broke into scattered cumulus, but the front behind us was visible from the ground, a darkening of the northern horizon. —  Steven Gould - Wildside (v2.1)
  • However, Howard's "modifications" -- cirrus, cumulus, and stratus --have lasted very successfully to the present day and are part of the bedrock of modern meteorology. —  F ;SF - vol 086 issue 01 - January 1994
  • He recognized that most clouds come in two basic types: "cumulus" and "stratus," or heaps and layers. —  F ;SF - vol 086 issue 01 - January 1994
  • There are four basic cloud classifications: stratus, cumulus, cirrus and nimbus.
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Roget's II Roget's II: The New Thesaurus

Allen's Allen's Synonyms and Antonyms

Used in the same context Used in the Same Context

accedit ·  optata ·  stratus ·  discat ·  pesty ·  cottonwool ·  meritus ·  cumulous ·  concedat ·  fugae ·  supplicii ·  origo
Roget's II: The New Thesaurus, Third Edition by the Editors of the American Heritage® Dictionary. Copyright © 2003, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Etymologies (2)

Toggle American Heritage etymologies American Heritage Dictionary (1)

  1. Latin, heap; see keuə- in Indo-European roots.

Toggle Century etymologies Century Dictionary (1)

  1. from Latin cumulus, a heap, whence ult. cumble, cumber, n., and cumulate, accumulate, etc.
 

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/ˈkjumjuləs/
by American Heritage

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