https://doi.org/10.1351/goldbook.A00398
Substance, structurally similar to a @M03859@, which competes with it or replaces it, and so prevents or reduces its normal utilization.
Source:
PAC, 1993, 65, 2003. (Glossary for chemists of terms used in toxicology (IUPAC Recommendations 1993)) on page 2015 [Terms] [Paper]