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From The Collaborative International Dictionary of English v.0.48 [gcide]:
Imaginary \Im*ag"i*na*ry\, adjective [L. imaginarius: cf. F. imaginaire.] Existing only in imagination or fancy; not real; fancied; visionary; ideal.
Wilt thou add to all the griefs I suffer Imaginary ills and fancied tortures? --Addison.
{Imaginary calculus} See under {Calculus}.
{Imaginary expression} or {Imaginary quantity} (Alg.), an algebraic expression which involves the impossible operation of taking the square root of a negative quantity; as, [root]-9, a + b [root]-1.
{Imaginary points}, {lines}, {surfaces}, etc. (Geom.), points, lines, surfaces, etc., imagined to exist, although by reason of certain changes of a figure they have in fact ceased to have a real existence.
Syn: Ideal; fanciful; chimerical; visionary; fancied; unreal; illusive.
From The Collaborative International Dictionary of English v.0.48 [gcide]:
Imaginary \Im*ag"i*na*ry\, noun (Alg.) An imaginary expression or quantity.
From WordNet (r) 3.0 (2006) [wn]:
adjective
1: not based on fact; unreal; "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}, {imaginary}, {notional}]
noun
1: (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}, {imaginary}]
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Definitions retrieved from the Open Source DICT English and WordNet 3.0 dictionaries. Click here for database copyright information.
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