Simple Definition of formaldehyde

from our Learner's Dictionary

formaldehyde

noun

foɚˈmældəˌhaɪd How to pronounce formaldehyde (audio)
chemistry : a chemical that is used to prevent decay in the dead bodies of people and animals

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“Formaldehyde.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/formaldehyde. Accessed 14 Apr. 2026.

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