The speed of light viewed as an uncrossable barrier to acceleration from subluminal and superluminal speeds in special relativity.

plural of ice barrier

sound barrier

An island close to, and parallel to, the main coastline.

(computing, programming) An instruction that enforces an ordering constraint on memory operations issued before and after it.

plural of memory barrier

plural of Jersey barrier

plural of jersey barrier

Alternative form of Jersey barrier

A modular concrete or plastic barrier designed to create walls that separate lanes of traffic or to block traffic. / A Jersey wall; a wall composed of Jersey barriers that separates lanes of traffic.