electoral roll or electoral register noun
The list of people in a particular area who are eligible to vote in local and general elections
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Main Entry: ↑elect
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electoral register UK US noun [countable] [singular electoral register plural electoral registers] british
an official list of all the people in an area who have the right to vote in elections
Variant: electoral roll
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(in Britain) the official list of people who have the right to vote in a particular area
Useful english dictionary. 2012.