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Từ điển Oxford Learners Wordfinder Dictionary
imaginary



I - noun
(mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1
Syn:
complex number, complex quantity, imaginary number
Topics:
mathematics, math, maths
Hypernyms:
number
Hyponyms:
complex conjugate, real number, real, pure imaginary number
Part Meronyms:
imaginary part, imaginary part of a complex number

II - adjective
not based on fact;
unreal (Freq. 7)
- "the falsehood about some fanciful secret treaties"- F.D.Roosevelt
- a small child's imaginary friends
- to create a notional world for oneself
Syn:
fanciful, notional
Similar to:
unreal

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