potentiation

https://doi.org/10.1351/goldbook.P04788
Dependent action in which a substance or physical agent at a concentration or @DT07361@ that does not itself have an @AT06809@ enhances the harm done by another substance or physical agent.
See also:
antagonism
,
synergism
Source:
PAC, 1993, 65, 2003. (Glossary for chemists of terms used in toxicology (IUPAC Recommendations 1993)) on page 2085 [Terms] [Paper]