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master switch
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mastoidectomy
mas·toid·ec·to·my [ màss toy déktəmee ] (plural mas·toid·ec·to·mies)


noun 
Definition:
 
removal of mastoid process: a surgical operation to remove part of an infected mastoid process
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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