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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 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

In 2021, researchers at the University of California, Berkeley found that acute exposure to the chemical formaldehyde led to a 78% increase in the risk of developing ALS and a 71% increase in brain cancer.

From The Wall Street Journal • Dec. 22, 2025

The provision in question applies to the regulation of nearly 200 pollutants, including mercury, arsenic, benzene and formaldehyde.

From Los Angeles Times • Aug. 16, 2025

A technical mistake: pumped her too full of formaldehyde or embalming fluid or whatever they used.

From "The Things They Carried" by Tim O'Brien