re·ac·tance (r - k t ns)n. Symbol X Electricity Opposition to the flow of alternating current caused by the inductance and capacitance in a circuit rather than by resistance. |
reactance [rɪˈæktəns]
n
1. (Electronics) the opposition to the flow of alternating current by the capacitance or inductance of an electrical circuit; the imaginary part of the impedance Z, Z = R + iX, where R is the resistance, i = √-1, and X is the reactance. It is expressed in ohms Compare resistance [3]
2. (Physics / General Physics) the opposition to the flow of an acoustic or mechanical vibration, usually due to inertia or stiffness. It is the magnitude of the imaginary part of the acoustic or mechanical impedance
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  reactance - opposition to the flow of electric current resulting from inductance and capacitance (rather than resistance)electrical phenomenon - a physical phenomenon involving electricity |
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