maximum tolerable dose (MTD)

https://doi.org/10.1351/goldbook.M03769
Highest amount of a substance that, when introduced into the body, does not kill test animals (denoted by \(\text{LD}_{0}\)).
Source:
PAC, 1993, 65, 2003. (Glossary for chemists of terms used in toxicology (IUPAC Recommendations 1993)) on page 2067 [Terms] [Paper]