Pronunciation: (u-strīd'), [key]
1. with a leg on each side of; straddling: She sat astride the horse.
2. on both sides of: Budapest lies astride the river.
3. in a dominant position within: Napoleon stands astride the early 19th century like a giant.
in a posture of striding or straddling; with legs apart or on either side of something.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.