WordReference Random House Unabridged Dictionary of American English © 2026
al•le•lop•a•thy
(ə lē lop′ə thē, al′ə lop′-),USA pronunciation n. [Bot.]
al•le•lo•path•ic
(ə lē′lə path′ik, ə lel′ə-),USA pronunciation adj.
- Plant Diseases, Botanysuppression of growth of a plant by a toxin released from a nearby plant of the same or another species.
- French allélopathie; see allele, -pathy
- 1940–45;