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flammability

American

[flam-uh-bil-i-tee] / ˌflæm əˈbɪl ɪ ti /

noun

the quality of burning or igniting easily.

The potential fire hazard depends on the flammability of the liquids being stored, their total quantity, and the type of container in which they are stored.

Other Word Forms

nonflammability noun

Etymology

Origin of flammability

flammabl(e) ( def. ) + -ity ( def. )

Vocabulary lists containing flammability

Structure and Properties of Matter - Middle School

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Structure and Properties of Matter - Introductory

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Structure and Properties of Matter - High School

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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 state’s proposed Zone 0 regulations oversimplify complex conditions in real neighborhoods and go beyond what is currently known from scientific research regarding plant flammability.

From Los Angeles Times • Jun. 2, 2025

The order comes after the commission sued Amazon in 2021 over allegations that the company distributed unsafe products from third-party sellers, including faulty carbon monoxide detectors and children’s pajamas that failed flammability tests.

From Seattle Times • Apr. 14, 2024

The building's exterior, Puchades explains, featured a polyurethane material that is no longer in wide use due to fears over flammability.

From BBC • Feb. 23, 2024

Synchronous increases in the flammability of forests and the frequency of lightning strikes are a worrying sign that intact extratropical forests will face an increasing threat of wildfire in future.

From Science Daily • Nov. 9, 2023

The latter extinguishes flame as well as the former, unless its own flammability is supported by the oxygen of the atmosphere until the degree of oxygenation CO_2 is reached.

From Scientific American Supplement, No. 288, July 9, 1881 by Various

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023