From Longman Dictionary of Contemporary Englishturnstileturn‧stile /ˈtɜːnstaɪl $ ˈtɜːrn-/ noun [countable] TBa small gate that spins around and only lets one person at a time go through an entrance → revolving door We’ve had 600,000 admissions through the turnstiles.
Examples from the Corpus
turnstile• The sentry checked its authenticity then activated the electronic turnstile.• The League also refused to allow concessions to unemployed supporters at the turnstiles.• At the turnstiles my bag, containing a snack for half-time, was searched.• He bypasses the turnstile and goes behind a partition that separates the platform from a space behind it.• Finally the guard steps aside and motions him through the turnstile.• Workers in many stations allowed passengers through the turnstiles without the usual 15-cent tickets.• Fifty, sixty, a hundred thousand people came streaming through the turnstiles every day.• The man in the booth did something to the turnstile, then we all pushed in. 