emulsifier

An emulsifier is often added to salad dressing to keep the oil and vinegar from separating.

用法提示：emulsifier 作为可数名词单数形式，指用于防止液体分离的物质。

This lotion contains a natural emulsifier that makes it smooth and easy to apply.

用法提示：emulsifier 作为可数名词单数形式，在化妆品语境中指乳化成分。

Chemists are developing new emulsifiers that work better at high temperatures.

用法提示：emulsifiers 为名词复数形式，指多种乳化剂。