tristates

Noun

tristate (plural tristates)

1. A variable, etc. that can take any of three distinct values.
   • The 4 input ports are simply tristates that can be addressed to enable the data from any one of them to be read by the standard input port of the printer interface.2000, John Blankenship, C is for Control
2. (capitalized, often) The area in some regions of the United States where three state borders come to a single point.
   • The Tristate is on alert after a rash of home burglaries.

See all 4 meanings of tristate