lethal dose

noun

The dose of a substance or of radiation likely to cause death (sometimes suffixed with a number).

“A lethal dose 50 will cause the death of 50% of a sample of test animals.”

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Meanings

nounlethal dose (plural lethal doses, abbreviation LD)

plural lethal doses · abbreviation LD

  1. The dose of a substance or of radiation likely to cause death (sometimes suffixed with a number).

    A lethal dose 50 will cause the death of 50% of a sample of test animals.

Cite this entry
APA

lethal dose. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/lethal%20dose

MLA

“lethal dose.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/lethal%20dose. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “lethal dose,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/lethal%20dose.

Source: lethal dose on Wiktionary, CC BY-SA 4.0.