noun
superconductivity
A physics term for zero electrical resistance in certain materials at very low temperatures.
超電導は、特定の物質を極低温に冷やすと電気抵抗がゼロになる現象です。
Superconductivity is a phenomenon where electrical resistance becomes zero when certain materials are cooled to extremely low temperatures.
Common variant using 電 (electricity); often seen in news and general contexts.
Standard scientific spelling; the kanji 伝 means 'transmit' or 'conduct'.
超伝導体 is a superconductor (the material), while 超伝導 is the phenomenon or property itself.
Compound of 超 (super-) and 伝導/電導 (conduction). The spelling 超伝導 uses the general kanji for conduction, while 超電導 explicitly includes the electricity radical.