In general use, flammable is now the preferred term for describing things that can catch fire, but inflammable is still occasionally used with that meaning as well.

Flammable applies to combustible materials that ignite easily and thus are more dangerous and more highly regulated. Less easily ignited less-vigorously burning materials are combustible.

Usage: Flammable and inflammable are interchangeable when used of the properties of materials. Flammable is, however, often preferred for warning labels as there is less likelihood of …

Unpaid military and security forces, a demoralised public service, armies of unemployed youth and an increasingly impoverished mass population became the core elements of a flammable society.

Definition of flammable adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

In order for a substance to be flammable, it must be able to undergo this chemical reaction with oxygen. The ability of a substance to do so is determined by its chemical composition and properties, as well …

Mar 4, 2026 · Flammable materials are any substances that can catch fire and burn when exposed to a heat source, spark, or open flame. They include liquids, solids, and gases, and they’re found …

FLAMMABLE definition: easily set on fire; combustible; inflammable. See examples of flammable used in a sentence.

Flammable chemicals, gases, cloth, or other things catch fire and burn easily. ...flammable liquids such as gasoline or kerosene.

Britannica Dictionary definition of FLAMMABLE [more flammable; most flammable] : capable of being set on fire and of burning quickly a flammable liquid a highly flammable fabric