cell population viability viable cell population 2013-04-04T13:51:27Z Note that a viable population may contain individual cells that are inviable. Usually it is difficult to detect inviable cells within an otherwise viable population, especially if population growth is simply assayed by OD increase in liquid culture or by colony formation on plates. If you have done an experiment that detects individual inviable cells, consider using the term 'mixed population including viable and inviable cells' (FYPO:0000908). FYPO:0002058 midori A cell population phenotype in which cells in the population are viable.