biennial

C2 · Proficiency Science Technical

adj. lasting for a period of two years.

adj. having a duration of two years; specifically used in biology to describe a life cycle.

Español:bienal

“The scientist studied the biennial life cycle of certain forest insects.”

“The research project focused on the biennial growth patterns of specific alpine shrubs that remain dormant during their first winter.”

C1 · Advanced Countable noun Science Technical

n. a plant that takes two years to grow, flower, and then die.

n. a plant that completes its biological life cycle in two years, typically flowering in the second year.

“Carrots are a common biennial, though we usually harvest them in their first year.”

“Gardeners often plant biennials like foxgloves in consecutive years to ensure they have blooms every summer.”

C1 · Advanced Countable noun Formal

n. an event, like an art show or sports competition, that happens every two years.

n. an event that recurs every two years, most commonly used in the context of international art exhibitions.

“She was invited to show her paintings at the Venice Biennial.”

“The city's photography biennial has become a major draw for international critics since its inception a decade ago.”