acute toxicity

https://doi.org/10.1351/goldbook.AT06800
  1. Adverse effects of finite duration occurring within a short time (up to 14 d) after administration of a single @DT07361@ (or @ET06811@ to a given concentration) of a test substance or after multiple doses (exposures), usually within 24 h of a starting point (which may be exposure to the toxicant, or loss of reserve capacity, or developmental change, etc.)
  2. Ability of a substance to cause adverse effects within a short time of dosing or exposure.
Source:
PAC, 2004, 76, 1033. (Glossary of terms used in toxicokinetics (IUPAC Recommendations 2003)) on page 1037 [Terms] [Paper]