poll noun definition in Elections topic from the Oxford Advanced Learner's Dictionary

poll

 noun: Elections topic
[countable] (also the polls [plural]) the process of voting at an election; the process of counting the votes The final result of the poll will be known tomorrow. Their defeat at the polls came as a big shock. Thursday is traditionally the day when Britain goes to the polls (= when elections are held). Polls close (= voting ends) at 9 p.m.