noun. The state of being viable; capability of living; specifically, capability in the fetus of continued existence after removal from the womb.

noun. In natural history, the ability to live in certain conditions of environment, climatic, geographical, etc.: as, the viability of fish in the water; the viability of an imported plant or animal in a country.

noun. The quality or state of being viable.

noun. The capacity of living after birth.

noun. The capacity of living, or being distributed, over wide geographical limits.

noun. the property of being viable; the ability to live or to succeed

noun. (of living things) capable of normal growth and development

noun. capable of being done in a practical and useful way

"The other candidates including John Edwards don't appear to have received what they call viability, 15 percent of the 164 people who have gathered in this one caucus."

practicality  property  

ability  acceptability  adaptability  admissibility  affordability  

angiogenesis  apoptosis  competitiveness  cytotoxicity  feasibility  

acceptability  achievability  actability  activation  adequacy