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understory
understrength
understudy
undersurface
undertake
undertaker
undertaking
underthings
underthrust
undertime
undertint
undertone
undertow
undertray
undertrial
undertrick
undertrump
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underthrust
un·der·thrust [ úndər thrùst ] (plural un·der·thrusts)


noun 
Definition:
 
fault with lower layer driven underneath: a reverse fault in which a lower layer of rock is driven underneath a higher, relatively passive layer
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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