(systems theory) That part of a control system that dynamically updates the parameters of an optimizing control function or a direct control function

(trademark) a form of thyristor

(computing, Internet) A networking protocol, almost always layered on top of the Internet Protocol, that provides reliable, connection based communications.

(plural only, US, military slang) The brown-framed prescription eyeglasses issued to new recruits in the U.S. military, and perceived as notoriously unattractive.

(computing) A security scheme for file-level security (as opposed to traditional user, group levels, or the somewhat stricter role levels). Abbreviated ACL.

(automotive) An electronic system that assists in the control of car stability.

The line which separates the Indian-administered union territory of Ladakh from Chinese-administered territory of Aksai Chin.

plural of radio-controlled car

(aviation) A usually-unintentional crash of an aircraft in which the aircraft flies into the ground while under full control by its pilots or autopilot.

A road, chiefly referred to as motorway, with grade-separated crossings (rather than level crossings) and designed (and only permitted) for high-speed motor-traffic (in Europe motor vehicles with a higher speed limit than 40 km/h) running in two directions on one separate carriageway each