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ultra vires
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ultrasonic welding
ul·tra·son·ic weld·ing


noun 
Definition:
 
bonding using ultrasound: the bonding of two components by bombarding them with ultrasonic waves to cause vibrations between them
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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