1 day ago · The meaning of COMPOUND is something formed by a union of elements or parts; especially : a distinct substance formed by chemical union of two or more ingredients in definite …

Sep 20, 2025 · A compound is a substance formed when two or more different types of atoms chemically combine in a fixed ratio. For instance, water is composed of two hydrogen atoms and one …

Jun 19, 2011 · COMPOUND definition: composed of two or more parts, elements, or ingredients. See examples of compound used in a sentence.

a word that combines two or more different words. Often, the meaning of the compound cannot be discovered by knowing the meaning of the different words that form it. Compounds may be written …

Chemistry A substance made up of two or more elements joined by chemical bonds into a molecule. The elements are combined in a definite ratio. Water, for example, is a compound having two hydrogen …

In chemistry, a compound is a substance that consists of two or more elements. Organic compounds contain carbon in their molecules.

Jun 12, 2026 · compound (third-person singular simple present compounds, present participle compounding, simple past and past participle compounded) (transitive) To form (a resulting mixture) …

(music) An octave higher than originally (i.e. a compound major second is equivalent to a major ninth).

having or involving two or more actions or functions: The mouth is a compound organ. Grammar of or pertaining to a compound sentence or compound-complex sentence.

If you compound a problem you add something to it to make it worse, like say, putting water on a grease fire. Compound means to combine; a compound is a combination or mixture of two or more things.