Pronunciation: (di-sten'did), [key]
1. increased, as in size, volume, etc.; expanded; dilated: the distended nostrils of the terrified horse.
2. swollen, by or as by internal pressure, out of normal size or shape; protuberant: distended wineskins; the distended arteries of his neck.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.