biennial

The definition of biennial is happening every two years.

(adjective)

An example of a biennial event is a local election that happens every other year.

A biennial is defined as an event that happens every two years, or a plant that lasts two years.

(noun)

An example of a biennial is parsley.

See biennial in Webster's New World College Dictionary

adjective

Origin: < L biennium, period of two years < bi-, bi- + annus, year + -al

noun

a biennial event or occurrence
Bot. a plant that lasts two years, usually producing flowers and seed the second year

Related Forms:

See biennial in American Heritage Dictionary 4

adjective

noun

An event that occurs every two years.
Botany
a. A plant that normally requires two seasons to complete its life cycle, growing usually as a rosette in the first season and producing flowers and fruits and then dying in the second season.
b. A perennial plant, such as the English daisy, cultivated as a biennial.

Related Forms: