reverberation

[ri-vur-buh-rey-shuhn] Origin

re·ver·ber·a·tion

[ri-vur-buh-rey-shuhn]
noun
1.
a reechoed sound.
2.
the fact of being reverberated or reflected.
3.
something that is reverberated: Reverberations from the explosion were felt within a six-mile radius.
4.
an act or instance of reverberating.
5.
Physics. the persistence of a sound after its source has stopped, caused by multiple reflection of the sound within a closed space.
EXPAND
6.
the act or process of subjecting something to reflected heat, as in a reverberatory furnace.
COLLAPSE

Origin:
1350–1400; Middle English reverberacioun < Medieval Latin reverberātiōn- (stem of reverberātiō). See reverberate, -ion
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Reverberation is always a great word to know.
So is acceleration of gravity. Does it mean:
a device that produces a nearly parallel, monochromatic, coherent beam of light by exciting atoms to a higher energy level and causing them to radiate
the acceleration of a falling body in the earth's gravitational field, inversely proportional to the square of the distance from the body to the center of the earth
Collins
World English Dictionary
reverberate (rɪˈvɜːbəˌreɪt)
 
vb
1.  (intr) to resound or re-echo: the explosion reverberated through the castle
2.  to reflect or be reflected many times
3.  (intr) to rebound or recoil
4.  (intr) (of the flame or heat in a reverberatory furnace) to be deflected onto the metal or ore on the hearth
5.  (tr) to heat, melt, or refine (a metal or ore) in a reverberatory furnace
 
[C16: from Latin reverberāre to strike back, from re- + verberāre to beat, from verber a lash]
 
re'verberant
 
adj
 
re'verberative
 
adj
 
re'verberantly
 
adv
 
reverber'ation
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History

reverberation
late 14c., "reflection of light or heat," from O.Fr. reverberation, from M.L. reverberationem (nom. reverberatio), from L. reverberatus, pp. of reverberare "beat back," from re- "back" + verberare "to beat," from verber "whip, lash, rod," related to verbena "leaves and branches of laurel," from PIE
EXPAND
*werb- "to turn, bend" (see warp). Sense of "echo" is attested from 1626. Shortened form reverb (n.) is attested from 1961.
COLLAPSE
Online Etymology Dictionary, © 2010 Douglas Harper
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