Dictionary
con•tam•i•nate
Pronunciation: (
—v.kun-tam'u-nāt";
—n., adj.kun-tam'u-nit, -nāt"), [key]
—v., -nat•ed, -nat•ing,
—n., adj.
—
v.t.
1. to make impure or unsuitable by contact or mixture with something unclean, bad, etc.:
to contaminate a lake with sewage.
2. to render harmful or unusable by adding radioactive material to:
to contaminate a laboratory.
—
n.
something that contaminates or carries contamination; contaminant.
—
adj.
Obs.contaminated.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.