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zero-plus tick
zero population growth
zero-rate
zero-sum
zero tolerance
zero-zero
zero-zero option
zerofill
zeroize
zeroth
zest
zester
zeta
Zethus
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zettabyte
zeugma
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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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