Technical term for a stable mixture of two immiscible liquids, used in chemistry, photography, and pharmaceuticals.
この乳剤は塗布後すぐに乾きます。
This emulsion dries quickly after application.
写真の乳剤は
Photographic emulsion is sensitive to light.
photographic emulsion
photosensitive emulsion
Compound of 乳 (milk, milky) and 剤 (agent, preparation), referring to a milky liquid mixture.