Pronunciation: (nēm), [key]
1. a product of the seeds of a tropical tree, Azadirachta indica, of the mahogany family, that disrupts reproduction in insects, used as an insecticide.
2. Also called neem' tree", nim tree, margosa. the tree itself.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.