Meaning of DUAL in English

I. ˈdü(-ə)l also ˈdyü-əl adjective

Etymology: Latin dualis, from duo two — more at two

Date: 1597

1. of grammatical number : denoting reference to two


a. : consisting of two parts or elements or having two like parts : double

b. : having a double character or nature

• du·al·ly -ə(l)-lē adverb

II. noun

Date: 1650

1. : the dual number of a language

2. : a linguistic form in the dual

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.