Pronunciation: (vī'u-bul), [key]
1. capable of living.
a. physically fitted to live.
b. (of a fetus) having reached such a stage of development as to be capable of living, under normal conditions, outside the uterus.
3. Bot.able to live and grow.
4. vivid; real; stimulating, as to the intellect, imagination, or senses: a period of history that few teachers can make viable for students.
5. practicable; workable: a viable alternative.
6. having the ability to grow, expand, develop, etc.: a new and viable country.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.