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imaginary SimpleWikiWiktionaryGoogle検索CollinsCambridgeLongmanLongman英和Learners 【 23075 】 【意味】 "[形容詞] not based on fact; unreal [例] the falsehood about some fanciful secret treaties- F.D.Roosevelt [例] a small child's imaginary friends [例] to create a notional world for oneself [例] The imaginary numbers are a set of numbers that are not real. [例] The story is imaginary. [例] They believed that the ghost was imaginary. [意味] 架空の, 想像上の, 空想的な, 空想上の, 非現実的な, 観念的な, 空想の, 仮想的な ; [同義語] fanciful, notional ; [類似語] unreal ; [同義語群] 01936528-a [名詞] (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1 [例] The square root of -1 is an imaginary number. [例] The imaginary number i is the square root of negative one. [例] They could not believe that imaginary numbers could be used in mathematics. [意味] 虚数, 複素数 ; [同義語] imaginary number, complex number, complex quantity ; [上位語] number ; [下位語] real number, complex conjugate, pure imaginary number, real ; [同義語群] 13729428-n"