Dual



GRE

解释

GRE 红宝书

• adj. 双重的
• ［英］ adj. 双重的 ( having or composed of two parts)
• ［记］ du ( 二个) +al -> 二个的 -> 双重的;比较: duel ( 决斗) , duet ( 二重的)

Webster Collegiate

I. adjective

• Etymology: Latin dualis, from duo two — more at two
• Date: 1597
• 1. of grammatical number denoting reference to two
• 2.
  • a. consisting of two parts or elements or having two like parts ; double
  • b. having a double character or nature
• ? dually adverb

II. noun

• Date: 1650
• 1. the dual number of a language
• 2. a linguistic form in the dual

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