Diplontic: A life cycle characterized by a diploid adult stage producing haploid gametes by meiosis, the zygote forming by fusion of a pair of gametes (Lincoln et al., 1998).
- Lincoln, R., Boxshall, G. & Clark, P., 1998. A dictionary of ecology, evolution and systematics (2nd ed.). Cambridge: Cambridge University of Press.
Definition may need revision to capture species where 'adult' is ambiguous, e.g. macroalgae where the term 'dominant life stage' might be more relevant.