micro-seismical

mi·cro·seism

[mahy-kruh-sahy-zuhm, -suhm]
noun Geology.
a feeble, recurrent vibration of the ground recorded by seismographs and believed to be due to an earthquake or a storm at sea.

Origin:
1885–90; micro- + seism

mi·cro·seis·mic, mi·cro·seis·mi·cal, adjective
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Collins
World English Dictionary
microseism (ˈmaɪkrəʊˌsaɪzəm) [Click for IPA pronunciation guide]
 
n
a very slight tremor of the earth's surface, thought not to be caused by an earthquake
 
microseismic
 
adj
 
micro'seismical
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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00:10
Micro-seismical is always a great word to know.
So is zedonk. Does it mean:
the offspring of a zebra and a donkey.
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
American Heritage
Science Dictionary
microseism   (mī'krə-sī'zəm)  Pronunciation Key 
A faint Earth tremor, unrelated to earthquakes, caused by natural phenomena, such as winds and strong ocean waves.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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