Concrete



GRE TOEFL 考研

解释

GRE 红宝书

• adj.具体存在的; n.混凝土
• ［英］ adj.具体存在的 ( existing in material form)
• ［类］ 反义词: conceptual ( 概念的)
• ［记］ con ( 共同) +crete ( 产生) -> 共同产生 -> 具体的

Webster Collegiate

I. adjective

• Etymology: Middle English, from Latin concretus, from past participle of concrescere
• Date: 14th century
• 1. naming a real thing or class of things <the word poem is concrete, poetry is abstract
• 2. formed by coalition of particles into one solid mass
• 3.
  • a. characterized by or belonging to immediate experience of actual things or events
  • b. specific, particular concrete proposal
  • c. real, tangible <concrete evidence
• 4. relating to or made of concrete concrete wall
• ? concretely adverb
• ? concreteness noun

II. verb (concreted; concreting)

• Date: 1590
• transitive verb
  • 1.
    • a. to form into a solid mass ; solidify
    • b. combine, blend
  • 2. to make actual or real ; cause to take on the qualities of reality
  • 3. to cover with, form of, or set in concrete
• intransitive verb
  • to become concreted

III. noun

• Date: 1656
• 1. a mass formed by concretion or coalescence of separate particles of matter in one body
• 2. a hard strong building material made by mixing a cementing material (as portland cement) and a mineral aggregate (as sand and gravel) with sufficient water to cause the cement to set and bind the entire mass
• 3. a waxy essence of flowers prepared by extraction and evaporation and used in perfumery

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