Noun
A revolving frame in a footpath, preventing the passage of horses or cattle, but admitting that of persons; a turnpike. See Turnpike, n., 1.
A similar arrangement for registering the number of persons passing through a gateway, doorway, or the like.
Source: Webster's dictionaryI can feel the heat closing in, feel them out there making their moves, setting up their devil doll stool pigeons, crooning over my spoon and dropper I throw away at Washington Square Station, vault a turnstile and two flights down the iron stairs, catch an uptown A train... William S. Burroughs
I disapproved of the number of men she had traipsing into her bedroom and suggested she should have a turnstile on her bedroom door. Jani Allan
However, when that same turnstile antenna is used in the "axial mode" (upwards, for the same horizontally-oriented structure) its radiation is circularly polarized. Source: Internet
Depositing a coin or token in a slot on the turnstile unlocks the arms, allowing a single customer to push through. Source: Internet
A turnstile antenna with its four arms in the horizontal plane, likewise transmits horizontally polarized radiation toward the horizon. Source: Internet
As I was going through the new titles and putting them in alphabetical order so I could get them on the turnstile, I came to one that was written by Tom Hanks. Source: Internet