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[mahy-kruh-burst] /ˈmaɪ krəˌbɜrst/
noun, Meteorology
an intense, localized downdraft of air that spreads on the ground, causing rapid changes in wind direction and speed; a localized downburst.
Origin of microburst
1980-85; micro- + burst Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for microburst


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
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microburst in Science
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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