[ mahy-kruh-burst ]
/ ˈmaɪ krəˌbɜrst /
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an intense, localized downdraft of air that spreads on the ground, causing rapid changes in wind direction and speed; a localized downburst.
QUIZ YOURSELF ON “THEIR,” “THERE,” AND “THEY’RE”
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Which one of these commonly confused words can act as an adverb or a pronoun?
Words nearby microburst
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for microburst
/ (ˈmaɪkrəʊˌbɜːst) /
another name for downburst
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 microburst
[ mī′krō-bûrst′ ]
A sudden, violent downdraft of air over a small area (less than 16 sq km or 6.24 sq mi) that lasts at least 25 minutes. Microbursts can cause winds with speeds as high as 270 km (167 mi) per hour. They are difficult to detect and predict with standard weather instruments. They are especially hazardous to airplanes during landing or taking off.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.