Waterproof



GRE TOEFL 考研

解释

GRE 红宝书

• adj. 防水的; v. 使防水
• ［英］ adj. 防水的; v. 使防水 ( make waterproof)
• ［类］ 反义词: permeable ( 可渗透的)
• ［记］ water（水）+proof（防...的）

Webster Collegiate

I. adjective

• Date: 1736
• impervious to water; especially covered or treated with a material (as a solution of rubber) to prevent permeation by water
• ? waterproofness noun

II. noun

• Date: 1799
• 1. a waterproof fabric
• 2. chiefly British raincoat

III. transitive verb

• Date: 1841
• to make waterproof
• ? waterproofer noun

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