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the launching of a rocket, guided missile, or spacecraft.
Historical Examples

The Colors of Space Marion Zimmer Bradley
A World Called Crimson Darius John Granger
Wind Charles Louis Fontenay
Equation of Doom Gerald Vance
Atom Drive Charles Louis Fontenay
Equation of Doom Gerald Vance
Gold in the Sky Alan Edward Nourse
The Judas Valley Gerald Vance
The Planet Strappers Raymond Zinke Gallun
The Planet Strappers Raymond Zinke Gallun

the launching of a rocket under its own power
the time at which this occurs
(adverb; when transitive, usually passive) (of a rocket, spacemen, etc) to be launched


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  • Blastomere

    any cell produced during cleavage. Historical Examples The Ethics of Medical Homicide and Mutilation Austin O’Malley noun (embryol) any of the cells formed by cleavage of a fertilized egg blas’to·mer’ic (-mēr’ĭk, -měr’-) adj. blastomere (blās’tə-mîr’) Any of the cells resulting from the cleavage of a fertilized ovum. In the initial stage of development, the blastomeres […]

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    any of several diseases caused by certain yeastlike fungi, especially blastomycetes.

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