acute

antonym: chronic
https://doi.org/10.1351/goldbook.14421
  1. Of short duration, in relation to exposure or effect; the effect usually shows a rapid onset.
    Note 1: In regulatory toxicology, "acute" refers to studies where dosing is either single or limited to one day although the total study duration may extend to two weeks to permit appearance of toxicity in susceptible organ systems.
    Note 2: In aquatic ecotoxicology, exposure of the test organisms is typically continuous and of four days or less.
  2. In clinical medicine, sudden and severe, having a rapid onset.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 834 [Terms] [Paper]
Citation: 'acute' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.14421 RIS BibTex EndNote
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