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Zermatt
zero
zero-balance account
zero-base
zero-coupon
zero-defect
zero elasticity
zero-emission
zero gravity
zero grazing
zero growth
zero hour
zero in
zero-minus tick
zero option
zero out
zero-plus tick
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World English Dictionary
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zero gravity
ze·ro grav·i·ty


noun 
Definition:
 
condition of seeming weightlessness: a condition of apparent weightlessness resulting from the centrifugal force on an object counterbalancing the gravitational force attracting it
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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