Also found in: Thesaurus, Medical, Wikipedia.
Related to perennation: acropetal
intr.v. per·en·nat·ed, per·en·nat·ing, per·en·nates
To survive from one growing season to the next, often with a period of reduced or arrested growth between seasons. Used of plants or plant parts.
[Latin perennāre, perennāt-, to last many years, from perennis, lasting for years; see perennial.]
(Botany) botany the survival of a plant through the winter or dry season