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A battery

noun

1
the battery used to heat the filaments of a vacuum tube

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Source

Definitions adapted from the English Wiktionary entry for “A battery”, licensed CC BY-SA 4.0.

Retrieved Aug 19, 2026, 7:38 PM and stored in the WordPilot Vault index.

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Definitions adapted from Wiktionary and released under CC BY-SA 4.0.

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