Getting out the electorate

What’s the difference between an elector and a voter?
Elections Canada says: an elector is qualified to vote; a voter is an elector who has.
On average voter turnout since 1867 has run about 70 per cent over the course of 45 elections or referendums (of which Canada has had three – prohibition, 1898, conscription, 1942 and constitutional amendments in 1992; all failed.).
In November 2000, Elections Canada adjusted voter turnout from 61.2 per cent to 64.1 per cent after normal mainten