Adjuvant and Reactant

Adjuvant noun - An additive that enhances the effectiveness of medical treatment.

Reactant and adjuvant are semantically related in catalyst topic. In some cases you can use "Reactant" instead a noun "Adjuvant", when it comes to topics like something which incites activity.

Reactant noun - A chemical substance that is present at the start of a chemical reaction.

Adjuvant and reactant are semantically related in catalyst topic. You can use "Adjuvant" instead a noun "Reactant", if it concerns topics such as something which incites activity.