What Does LD Stand For?

LD stands for Lethal Dose

LD, or Lethal Dose, refers to the quantity of a substance that can cause death in a specific proportion of a tested population, typically expressed as LD50, which denotes the dose required to kill 50% of the test subjects. This measurement is crucial in toxicology and pharmacology for assessing the toxicity of various chemicals, drugs, and environmental agents. Understanding LD values helps in establishing safety guidelines and risk assessment for human exposure to potentially hazardous substances.