preservative
UK [prɪ'zɜ:.və.tɪv] US [-'zɝ:.və.tˌɪv] noun
countable or uncountable
■a substance used to prevent decay in wood （木材的）防腐剂，保护剂•a timber/wood preservative木材防腐剂 •The fence has been treated with preservative.围栏经过防腐处理。 countable
■a chemical used to stop food from decaying （食品）防腐剂，保鲜剂•This bread is completely free from artificial preservatives.这种面包绝不含人工防腐剂。 •No added preservatives.未添加任何防腐剂。 •natural preservatives天然防腐剂 |