Pronunciation: (i-lông-gā'shun, i-long-, ē"lông-, ē"long-), [key]
1. the act of elongating or the state of being elongated.
2. something that is elongated.
3. Astron.the angular distance, measured from the earth, between a planet or the moon and the sun or between a satellite and the planet about which it revolves.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.