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coveted
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confervoid algae
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hot-tempered
a. a. michelson
fringe benefit
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A battery
A battery
/eɪ ˈbætəri/
noun
The battery used to heat the filaments of a vacuum tube
(
A battery
)
the battery used to heat the filaments of a vacuum tube
The old radio operated using an A battery to heat its vacuum tubes.
The old radio operated using an A battery to heat its vacuum tubes.
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