slot machine

plural slot machines

1. Any machine operated by placing money or a token into a slot, especially:
   1. UKUSA machine so operated to play games of chance for money, especially those with a lever and three or more rollers used to achieve combinations.

      As an illustration of a general technique for calculating odds, suppose you are playing a 25-cent slot machine.

      2005, Benjamin Crowell, The Modern Revolution in Physics

      Synonyms: one-armed bandit, slot, fruit machine, poker machine, pokie, pokie machine

   2. Synonym of vending machine.

      The paperback selling slot-machine was only one resourceful trade invention, […]

      1998, Eva Hemmungs Wirtén, Global Infatuation: explorations in transnational publishing and texts

      Synonyms: vending machine

   3. datedA gas stove that requires the insertion of a coin to operate.

      1 more example

      “[…]But I should be much obliged if you would see that the gas people come to-morrow and put my stove in order. It might be done while I am out. That the shilling-in-the-slot machine should go wrong is very unpleasant.[…]” […] Mr. Sleuth spoke pettishly, with far more heat than he was wont to speak, but Mrs. Bunting sympathised with him in this matter. She had always suspected that those slot machines were as dishonest as if they were human.

      1913, Marie Adelaide Belloc Lowndes, The Lodger