Pronunciation: (wimp), [key] Informal.
a weak, ineffectual, timid person.
a. to be or act like a wimp.
b. to show timidity or cowardice; chicken out.
Pronunciation: (wimp), [key]
any of a group of weakly interacting elementary particles predicted by various unified field theories, as the W particle and Z-zero particle, that are characterized by relatively large masses.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.