The definition of a perennial person or thing is when they exist or are active for a whole year or a long time.(adjective)
An example of perennial is a person who has lived for a long time.
The definition of a perennial is something that is always present, often referring to plants.(noun)
An example of a perennial is a plant that regrows each year in the spring.
See perennial in Webster's New World College Dictionary
Origin: < L perennis, lasting through the year < per-, through + annus, a year: see per & annual
See perennial in American Heritage Dictionary 4
Origin: Latin perennis (per-, throughout; see per- + annus, year; see at- in Indo-European roots)
Origin: + -al1.
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