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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

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

From Los Angeles Times • Aug. 16, 2025

It stank of formaldehyde and, even through the cloth, felt unpleasantly moist.

From "Miss Peregrine's Home for Peculiar Children" by Ransom Riggs