imaginary
English Thesaurus
1. (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1 (noun.quantity)
| hypernym | : | number, |
| definition | : | a concept of quantity involving zero and units (noun.quantity) |
| hyponym | : | complex conjugate, |
| definition | : | either of two complex numbers whose real parts are identical and whose imaginary parts differ only in sign (noun.quantity) |
| hyponym | : | real, real number, |
| definition | : | any rational or irrational number (noun.quantity) |
| hyponym | : | pure imaginary number, |
| definition | : | an imaginary number of the form a+bi where a is 0 (noun.quantity) |
| domain category | : | math, mathematics, maths, |
| definition | : | a science (or group of related sciences) dealing with the logic of quantity and shape and arrangement (noun.cognition) |
2. not based on fact; unreal (adj.all)
| similar | : | unreal, |
| definition | : | lacking in reality or substance or genuineness; not corresponding to acknowledged facts or criteria (adj.all) |
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