Pronunciation: (&thslash;âr'u-pon", -pôn", &thslash;âr"u-pon', -pôn'), [key]
1. immediately following that.
2. in consequence of that.
3. upon that or it.
4. with reference to that.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.