Definitions
1.verbTo keep something inside by means of a closed gate.
2.verbTo punish, especially a child or teenager, by not allowing them to go out.
3.verbTo open a closed ion channel.
4.verbTo furnish with a gate.
5.verbTo turn (an image intensifier) on and off selectively as needed, or to avoid damage. See autogating.
6.nounAn arrangement of gates.