noun

• (baseball) A single, a double, a triple, and a home run hit by the same player in the same game.
  "Jones hit for the cycle in the game."
• (graph theory) A closed walk or path, with or without repeated vertices allowed.
• (topology, algebraic topology) A chain whose boundary is zero.
• (botany) One entire round in a circle or a spire.
  "a cycle or set of leaves"

verb

• (electronics) To turn power off and back on
  "Avoid cycling the device unnecessarily."
• (ice hockey) To maintain a team's possession of the puck in the offensive zone by handling and passing the puck in a loop from the boards near the goal up the side boards and passing to back to the boards near the goal
  "They have their cycling game going tonight."