Operative



GRE

解释

GRE 红宝书

• adj. ( 计划等) 实施中的; 生效的
• ［英］ adj. ( 计划等) 实施中的;生效的 ( effective)
• ［记］ oper ( 做) +ative -> 在做的 -> 在实施中的
• ［同］ 同根词: operose ( 费力的) ;opus ( 作品, 大作)
• ［例］ The airport is operative again after the bad weather.

Webster Collegiate

I. adjective

• Date: 15th century
• 1.
  • a. producing an appropriate effect ; efficacious
  • b. most significant or essential <the operative word in a phrase>
• 2. exerting force or influence ; operating
• 3.
  • a. having to do with physical operations (as of machines)
  • b. working <an operative craftsman>
• 4. based on or consisting of an operation <operative dentistry>
• ? operatively adverb
• ? operativeness noun

II. noun

• Date: circa 1810
• operator: as
  • a. artisan, mechanic
  • b. a secret agent
  • c. private detective
  • d. a person who works toward achieving the objectives of a larger interest <political operatives>

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