Turnstyle vs. Turnstile

misspelling of turnstile

A turnstile (also called a turnpike, gateline, baffle gate, automated gate in some regions) is a form of gate which allows one person to pass at a time. It can also be made so as to enforce one-way human traffic, and in addition, it can restrict passage only to people who insert a coin, a ticket, a pass, or similar.

a mechanical gate consisting of revolving horizontal arms fixed to a vertical post, allowing only one person at a time to pass through.

A gate having projecting bars that can be rotated to allow one person at a time to pass through, often having a mechanism to allow passage only in one direction or to require payment, as by means of a token.

A gate controlling access to a space by another mechanical or electronic means, as by panels that slide out of the way when a card is swiped.

A rotating mechanical device that controls and counts passage between public areas, especially one that only allows passage after a charge has been paid.

A similar device in a footpath to allow people through one at a time while preventing the passage of cattle.

The $\backslash vdash$ symbol used to represent logical entailment (deducibility relation), especially of the syntactic type; i.e., syntactic consequence. (Such symbol can be read as "prove(s)" or "give(s)". )

A similar arrangement for registering the number of persons passing through a gateway, doorway, or the like.

a gate consisting of a post that acts as a pivot for rotating arms; set in a passageway for controlling the persons entering