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A battery

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noun Electronics.
an electric battery for heating the filament or cathode heater of an electron tube.
QUIZ
QUIZ YOURSELF ON "WAS" VS. "WERE"!
Were you ready for a quiz on this topic? Well, here it is! See how well you can differentiate between the uses of "was" vs. "were" in this quiz.
Question 1 of 7
“Was” is used for the indicative past tense of “to be,” and “were” is only used for the subjunctive past tense.
Compare B battery, C battery.

Origin of A battery

First recorded in 1920–25

Words nearby A battery

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use A battery in a sentence

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