preservative

CET-4 ★☆☆☆☆

a. 有助于保存的, 有保存力的 n. 预防药, 防腐剂

发音

US /prɪˈzəːvətɪv/

词形变化

preservatives 复数 preservatives

释义与例句

n.
  1. 1.

    Any agent, natural or artificial, that acts to preserve, especially when added to food.

    防腐剂

    Salt, sugar, and acid all act as preservatives when making pickles.

adj.
  1. 1.

    Tending to preserve.

    防腐的

    The curators took preservative actions to maintain the ancient collection.

词汇关系

名词

上位词 2

compound chemical compound

下位词 2

spice malic acid
形容词

近义相关 1

protective

词源

From Old French preservatif, from Medieval Latin praeservativus.

来源：wiktionary