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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 unusually high formaldehyde levels detected by satellites served as evidence that methane breakdown was taking place.

From Science Daily • May 10, 2026

Composite wood products can be bound with formaldehyde.

From BBC • Mar. 16, 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

Others include multiple types of exposures associated with fume events: chemicals that appear in both pesticides and engine oils; high levels of ultrafine particles and solvents like formaldehyde; and brain trauma.

From The Wall Street Journal • Dec. 22, 2025

With no time for embalming, they brush the dead with formaldehyde from buckets.

From "Out of Darkness" by Ashley Hope Pérez




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