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Definitions

formaldehyde

[fawr-mal-duh-hahyd, fer-] / fɔrˈmæl dəˌhaɪd, fər- /
NOUN
preservative
Synonyms


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The London scene was dominated by Damien Hirst, Tracey Emin and the Young British Artists - brazenly exhibiting sharks in formaldehyde and making art out of unmade beds.

From BBC • Jun. 12, 2026

That discovery immediately caught their attention because formaldehyde is produced when methane breaks down in the atmosphere.

From Science Daily • May 10, 2026

Preserved in formaldehyde and paraffin wax, they come from patients treated at the UK's national bowel hospital, St Mark's, in northwest London.

From Barron's • Feb. 4, 2026

But a recent FAA-funded study found two chemicals that can: formaldehyde, a known carcinogen and neurotoxin, and tridecane, which can cause headaches and stupor.

From The Wall Street Journal • Sep. 14, 2025

The embryos have been pickled; the scent of formaldehyde is very strong.

From "Cat's Eye" by Margaret Atwood




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