1 the principle that living organisms are generated only by other living organisms 2 generation of living organisms by this means Telomere biogenesis: the generation of telomeric sequences due to the presence of telomeric sequences
"1: the development of life from preexisting life 2: a supposed tendency for stages in the evolutionary history of a race to briefly recur during the development and differentiation of an individual of that race "
A doctrine that the genesis or production of living organisms can take place only through the agency of living germs or parents; opposed to abiogenesis