symbiosis

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun the relation between two different species of organisms that are interdependent; each gains benefits from the other

From Ancient Greek συμβίωσις (sumbíōsis, “living together”). By surface analysis, sym- + -biosis.

The rocks and lichens live in symbiosis. — The Colors of Space, Marion Zimmer Bradley
To understand rightfully the present renaissance in Spain as revealed in the almost unprecedented prosperity of her rural population, the multiplying of schools and libraries endowed in many instances by unknown "hands across the sea," the American student of Spanish must take into account the transcendental symbiosis through the agency of which lethargic Spain is being quickened and vitalized by her former colonies. — The Spanish American Reader, Ernesto Nelson

mutualism

Type a word, a sentence, a book title, or a link to an English article. WordNet and the Classics answer.

Try

A library of classics · a vault of words · instant etymology & meaning