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Dictionary

ap•as•tron

Pronunciation: (u-pas'trun, -tron), [key]
—n.,
—pl. -traPronunciation: (-tru). [key] Astron.
the point at which the stars of a binary system are farthest apart (opposed to periastron).

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

apast

apatetic

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