No. I mean a healthy fetus that is able to grow normally and be delivered as a baby in 9 months.
As you can see, the word viable ALSO means that something can grow normally under favorable conditions(See definition #1 below). That's what I mean. Abortions are being performed on HEALTHY fetuses.
vi·a·ble ( P ) Pronunciation Key (v-bl)
adj.
1) Capable of living, developing, or germinating under favorable conditions.
2) Capable of living outside the uterus. Used of a fetus or newborn.
3)Capable of success or continuing effectiveness; practicable: a viable plan; a viable national economy. See Synonyms at possible. http://dictionary.reference.com/search?q=viable