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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.

Using satellite observations, scientists detected unusually high levels of formaldehyde inside the enormous volcanic plume created by the eruption.

From Science Daily • May 10, 2026

The suit claims xAI’s 27 turbines emit nitrogen oxides and formaldehyde, linked to asthma, heart problems, and cancers.

From Barron's • Apr. 14, 2026

Composite wood products can be bound with formaldehyde.

From BBC • Mar. 16, 2026

Niosh’s limits for formaldehyde and tributyl phosphate are for a period of up to 10 hours over a 40-hour work week.

From The Wall Street Journal • Sep. 14, 2025

The house became a clutter of trunks, of animals in jars of formaldehyde, of Indian lances and sailor’s bundles.

From "The House of the Spirits: A Novel" by Isabel Allende