Reactant: meaning, definitions and examples

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reactant

[ rɪˈæktənt ]

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chemistry

A substance that takes part in and undergoes change during a reaction.

Synonyms

compound, reagent

Examples of usage

The reactants are the substances that are present before the chemical reaction takes place.
In a chemical equation, the reactants are written on the left side.
The reactant molecules collide with each other to form new products.

Translations

Translations of the word "reactant" in other languages:

🇵🇹 reagente

🇮🇳 प्रतिक्रियाशील

🇩🇪 Reaktant

🇮🇩 reaktan

🇺🇦 реагент

🇵🇱 reagent

🇯🇵 反応物

🇫🇷 réactif

🇪🇸 reactante

🇹🇷 reaktan

🇰🇷 반응물

🇸🇦 مادة متفاعلة

🇨🇿 reagens

🇸🇰 reagencia

🇨🇳 反应物

🇸🇮 reaktant

🇮🇸 viðbragðsefni

🇰🇿 реагент

🇬🇪 რეაქტენტი

🇦🇿 reaktant

🇲🇽 reactante

Word origin

The word 'reactant' originated in the mid-19th century, derived from the Latin word 'react-' meaning 'act again'. It was first used in the context of chemistry to describe substances involved in chemical reactions. Over time, 'reactant' has become a common term in the field of chemistry to refer to the starting materials that undergo change in a chemical reaction.