An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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multiplicative identity
  ایدانی ِ بستایشی  
idâni-ye bastâyeši
Fr.: identité multiplicative  

The number which when used as the multiplier of another number leaves the second unchanged; one.

See also: → multiplicative; → identity.