noun. a synthetic compound derived from triazine that is widely used as an agricultural herbicide.
1. Noun, singular or mass of atrazine with 1 gallon of water. 2. Verb, base form Researchers from the University of California at Berkeley demonstrated that African clawed frogs (Xenopus laevis) may change from male to female when exposed to atrazine -- a common herbicide. 3. Adjective Throw away the bottles you don't plan to use again for an atrazine application. 4. Verb, non-3rd person singular present Leaf discoloration and drying are common symptoms of damage done by such herbicides atrazine or metribuzin.