IMAGINARY

• (noun) (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1

  synonyms : complex number , complex quantity , imaginary number

• (adj.) not based on fact; unreal

  "the falsehood about some fanciful secret treaties", "a small child's imaginary friends", "to create a notional world for oneself"

  synonyms : fanciful , notional

WordNet® 3.0, © 2006 by Princeton University.

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