Clear, accurate chemistry definitions 1,357 terms 6 topics 118-element periodic table
Chemistry dictionary & glossary

Every chemistry term, clearly defined.

Your complete chemistry dictionary and glossary, with clear, accurate definitions of chemistry terms and concepts, for students, teachers, and the endlessly curious. Answer first, then the detail, an example, key facts, and the questions people actually ask.

1,357Terms defined 6Core topics 118Elements
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Every term is filed under the branch of chemistry it belongs to, so you can wander a subject or jump straight to a definition.

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