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单词 cumulus
释义

cumulus

[ kyoo-myuh-luhs ]
/ ˈkyu myə ləs /

noun, plural cu·mu·lus.

a heap; pile.
a cloud of a class characterized by dense individual elements in the form of puffs, mounds, or towers, with flat bases and tops that often resemble cauliflower: as such clouds develop vertically, they form cumulonimbus.

Origin of cumulus

1650–60; <New Latin (Latin: mass, pile)

Words nearby cumulus

cumuliform, cumulo-, cumulonimbus, cumulostratus, cumulous, cumulus, cumulus clouds, Cuna, Cunard, Cunaxa, cunctation
Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for cumulus

British Dictionary definitions for cumulus

cumulus
/ (ˈkjuːmjʊləs) /

noun plural -li (-ˌlaɪ)

a bulbous or billowing white or dark grey cloud associated with rising air currentsCompare cirrus (def. 1), stratus
histology the mass of cells surrounding a recently ovulated egg cell in a Graafian follicle

Word Origin for cumulus

C17: from Latin: mass
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for cumulus

cumulus
[ kyōōmyə-ləs ]

Plural cumuli (kyōōmyə-lī′)

A dense, white, fluffy cloud with a flat base, a multiple rounded top, and a well-defined outline. The bases of cumulus clouds form primarily in altitudes below 2,000 m (6,560 ft), but their tops can reach much higher. Cumulus clouds are generally associated with fair weather but can also bring rain when they expand to higher levels. The clouds' edges are well-defined when they are composed of water droplets and fuzzy when made up of ice crystals. See illustration at cloud.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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更新时间:2024/9/21 15:33:29