plural superconductors
Definition of superconductor
: a substance that exhibits no electrical resistance : a substance exhibiting superconductivity
Add a layer of aluminum oxide to a crystal made of neatly stacked soccer-ball shaped carbon molecules known as buckyballs, and the result is a superconductor that effortlessly carries electricity at relatively warm temperatures.— Kenneth Chang
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Merriam-Webster unabridged
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Time Traveler for superconductor
The first known use of superconductor was in 1913
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