IUPAC Glossary of Terms Used in Toxicology, 2nd Edition
IUPAC Recommendations, 2007

IUPAC Glossary of Terms Used in Toxicology - Terms Starting with Z

zero order kinetics
Kinetics of a reaction in which the rate is independent of the concentration(s) of the reactants.

Substance intended to kill animals.

  1. Cell such as a fertilized egg resulting from the fusion of two gametes.
  2. Cell obtained as a result of complete or partial fusion of cells produced by meiosis.