the GNU version of the Collaborative International Dictionary of English
n. Anything that kills fungi.
The Century Dictionary and Cyclopedia
n. That which destroys fungi; specifically, a chemical applied to fungi or their germs for the purpose of destroying them; a germicide.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. any agent that destroys or prevents the growth of fungi
Word Usage
"Food and Drug Administration officials have vowed to pull juice with higher than trace elements of the potentially harmful fungicide, which is 80 parts per billion or higher."