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ze'ro grav'ity



Physics.
the condition in which the apparent effect of gravity is zero, as in the case of a body in free fall or in orbit. Also,ze•ro-g,ze•ro-GPronunciation: (zēr'ō-jē'). [key]

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

zero-emission vehiclezero hour

 

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