adj.
- Capable of living, developing, or germinating under favorable conditions.
- Capable of living outside the uterus. Used of a fetus or newborn.
- Capable of success or continuing effectiveness; practicable: a viable plan; a viable national economy. See synonyms at possible.
[French, from vie, life, from Old French, from Latin vīta.]
viability vi'a·bil'i·ty n.viably vi'a·bly adv.
The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved.