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 proportion …

A chemical compound is a chemical substance composed of many identical molecules (or molecular entities) containing atoms from more than one chemical element held together by …

Some nouns consist of more than one word. These are compound nouns. Compound nouns can be formed in different ways. The most common way is to put two nouns together (noun + …

Dec 16, 2025 · Chemical compound, any substance composed of identical molecules consisting of atoms of two or more chemical elements. All the matter in the universe is composed of the …

In grammar, a compound noun, adjective, or verb is one that is made up of two or more words, for example 'fire engine', 'bottle-green', and 'force-feed'.

composed of two or more parts, elements, or ingredients: Soap is a compound substance. having or involving two or more actions or functions: The mouth is a compound organ.

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A chemical compound is a pure substance made of two or more different elements that are chemically combined in a fixed ratio. The atoms in a compound are bonded together by strong …

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

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 …