The meaning of SUBSTANCE is essential nature : essence. How to use substance in a sentence.

Jul 21, 2025 · Vaping is the use of an electronic device to inhale substances into your lungs. Vapes, also called vape pens or e-cigarettes, usually contain nicotine and come in many …

Numerous substances are found in nature and in the body that function as protective agents against oxygen-free radicals.

All compounds are substances, but not all substances are compounds. A chemical compound can be atoms bonded together in molecules, or in crystals in which atoms, molecules or ions form …

SUBSTANCE definition: that of which a thing consists; physical matter or material. See examples of substance used in a sentence.

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

Jul 12, 2024 · In chemistry, a substance is any form of matter that has a uniform and unchanging composition. This means that a substance is made of the same material throughout and has …

Chemistry a particular kind of material, as of a definite chemical composition:[countable] a metallic substance. substantial, important, significant, or solid character or quality:[uncountable] Those …

Any material that possesses physical properties is called a substance. The word also refers to the gist or main idea of something. If you remember the main point of a lesson, you've got the …

Substance is the quality of being important or significant. It's questionable whether anything of substance has been achieved. Syria will attend only if the negotiations deal with issues of …