Dictionary
pre•e•mer•gent
Pronunciation: (prē"i-mûr'junt), [key]—
adj. Hort.
of or pertaining to seedlings before they emerge or appear above ground:
a preemergent weed-killer.
—
n.
a preemergence chemical, as a herbicide.
Also,pre"-e•mer'gent.Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.