|a scrap or morsel of food left at a meal.|
|a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.|
|1.||capable of becoming actual, useful, etc; practicable: a viable proposition|
|2.||(of seeds, eggs, etc) capable of normal growth and development|
|3.||(of a fetus) having reached a stage of development at which further development can occur independently of the mother|
|[C19: from French, from vie life, from Latin vīta]|
nonviable non·vi·a·ble (nŏn-vī'ə-bəl)
Not capable of living or developing independently. Used especially of an embryo or a fetus.