We found 16 dictionaries that define the word lethal dose:

General (9 matching dictionaries)

1. lethal dose: Collins English Dictionary
2. lethal dose: Vocabulary.com
3. lethal dose: Wiktionary
4. lethal dose: Dictionary.com
5. Lethal dose: Wikipedia, the Free Encyclopedia
6. lethal dose: Rhymezone
7. lethal dose: FreeDictionary.org
8. lethal dose: Mnemonic Dictionary
9. Lethal dose (LD), lethal dose: TheFreeDictionary.com

Business (1 matching dictionary)

10. Lethal dose (LD), lethal dose: Legal dictionary

Computing (1 matching dictionary)

11. Lethal dose (LD), lethal dose: Encyclopedia

Medicine (3 matching dictionaries)

12. Dorland's Illustrated Medical Dictionary (No longer online)
13. online medical dictionary (No longer online)
14. Lethal dose (LD), lethal dose: Medical dictionary

Science (2 matching dictionaries)

15. Lethal dose (LD): NRC Glossary of Nuclear Terms --
16. How Many? A Dictionary of Units of Measurement (No longer online)

(Note: See lethal_doses as well.)

Definitions from Wiktionary (lethal dose) ▸ noun:  The dose of a substance or of radiation likely to cause death (sometimes suffixed with a number). Similar: LD50, effective dose, dose, semilethal dose, dosage, death toll, death rate, deathrate, kill/death ratio, kill-death ratio, more... Opposite: non-lethal, sublethal, survivable, nonfatal Phrases: Median lethal dose, minimum lethal dose, lethal dose (ld), lethal dose 50, minimal lethal dose, more... ▸ Words similar to lethal dose ▸ Usage examples for lethal dose ▸ Idioms related to lethal dose ▸ Wikipedia articles (New!) ▸ Words that often appear near lethal dose ▸ Rhymes of lethal dose ▸ Invented words related to lethal dose