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Zend
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zener diode
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zenith
zenithal projection
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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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