noun
additive; admixture
Technical term used in construction, chemistry, and manufacturing for a substance added to a mixture to modify its properties.
コンクリートに混和剤を加えると、強度が増す。
Adding an admixture to concrete increases its strength.
Compound of 混和 (mixing, blending) and 剤 (agent, preparation). The exact historical derivation is uncertain, but the term follows standard Sino-Japanese word formation patterns.