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sound produced along a path of a lightning flash, caused by the rapid heating and expansion of the adjacent air; lightning can heat air to temperatures as much as five times hotter than those at the surface of the sun. Rolling thunder occurs either as a result of the time difference between sounds from the far and near end of a flash, or when mountains, layers of air, or other obstructions cause reverberations. Since sound travels about 1 mi in 5 sec, the distance between a lightning flash and an observer may be determined by counting the seconds between the flash and the thunder. Thunder as far distant as 10 to 15 mi (15 to 25 km) from an observer is usually not heard, even though lightning is often seen. See thunderstormthunderstorm,
violent, local atmospheric disturbance accompanied by lightning, thunder, and heavy rain, often by strong gusts of wind, and sometimes by hail. The typical thunderstorm caused by convection occurs when the sun's warmth has heated a large body of moist air near the
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The Columbia Electronic Encyclopedia™ Copyright © 2013, Columbia University Press. Licensed from Columbia University Press. All rights reserved.

What does it mean when you dream about thunder?

Thunder may indicate a loud knocking at the door of the dreamer’s conscious mind to force the dreamer to pay attention and to learn. If accompanied by lightning bolts, inspiration and enlightenment may be indicated.

The Dream Encyclopedia, Second Edition © 2009 Visible Ink Press®. All rights reserved.


The sound emitted by rapidly expanding gases along the channel of a lightning discharge.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


The loud rumbling caused by lightning. The lightning creates a large amount of heat, which causes air to expand rapidly and violently. These expansion waves travel at supersonic speeds and are heard as thunder.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved


See also Lightning.
epithet of Dionysus, meaning ‘thunder.’ [Gk. Myth.: Zimmerman, 43]
cruel Cyclops who controls the weather; able to cause great thunder. [Gk. Myth.: Parrinder, 47; Jobes, 241, 400]
god of thunder; corresponds to Thor. [Ger. Myth.: Leach, 321]
thunder god and controller of weather. [Vedic Myth.: Leach, 521]
Thor’s hammer. [Norse Myth.: Brewer Dictionary, 1076]
god of thunder. [Norse Myth.: Leach, 1109]
Allusions—Cultural, Literary, Biblical, and Historical: A Thematic Dictionary. Copyright 2008 The Gale Group, Inc. All rights reserved.


a loud cracking or deep rumbling noise caused by the rapid expansion of atmospheric gases which are suddenly heated by lightning
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
References in periodicals archive ?
Thunder on Saturday enhanced their chances of leading the table at the end of the first leg of the Kenya Basketball Federation men's Premier League when they registered a hard-fought 57-42 victory over Lakeside at Nyayo National Stadium gymnasium.In the women's Premier League, forward Melisa Akinyi scored a game-high 19 points to help champions Equity Bank defeat Storms 63-13 in a lop-sided affair at Nyayo.
Thunder took things for granted leaving Justus Okutoyi, Sila Derrick and Kennedy Okumu loose up court to hit the target earning Lakeside a shocking 13-7 first quarter lead.Thunder's forward Ancette Wafula, who was recruited from Ulinzi Warriors, and Terry Nate had to take responsibility to help their fancied side outscore Lakeside 16-10 in the second quarterto lock the scores at 23-23 at half-time.
Lakeside, who meet Ulinzi Warriors today, had forward Charles Anjeho locking the scores 41-41, a result which sent Thunder into panic.
MANCHESTER THUNDER 56 LOUGHBOROUGH LIGHTNING 62 LOUGHBOROUGH Lightning secured their second victory of the Bank Holiday weekend on Monday night, beating Manchester Thunder 62-56.
Leaving little time to ponder, Thunder regained composure and retaliated, evening the scores.
REDCAR Town Under-10s C (The Thunder) always look forward to their trips to play South Park B with the clubs having struck up a good rapport over the last few seasons and the weather was kind with a sunny and still day.
Thunder were without influential skipper Callum Atkinson, but the rest of the team were determined to show their mettle.
Betting on the Thunder to win the game triples a wager for any OKC backer-a tasty proposition but perhaps just too big to veer away bettors from betting for the Spurs.
The Spurs outscored the Thunder, 66-32 in the paint.
And many of them may really be looking for someone to kiss in the rain or hide from the thunder on the couch with.
In the movie, Wahlberg's full-grown-man of a character is horrified of thunder.