(a) a leaf of clover; (b) a system of intersecting roads from different levels, in form resembling the leaf of clover; frequently attributive.

A road junction designed so that traffic streams do not intersect.

a T-shaped intersection (of pipes, etc.); spec. a T-shaped road junction.

a junction at which a road forks into two branches, or one road joins another at an angle different from 90 degrees.

Complex roadways forming a multi-level junction, esp. on a motorway. colloquial.

a road junction with a grid of yellow lines painted on the road, marking an area which drivers may not enter until their exit from the junction is…

A road junction which drivers may not enter until their exit from the junction is clear, typically marked with lines painted on the road or a…

a complex junction of roads at different levels; applied spec. to a major interchange on the M6 near Birmingham; also figurative.

a road junction at which traffic is channelled in two directions round a central island, entering and leaving by smaller islands.

British. A road junction or traffic system requiring the circulatory movement of traffic, and which is larger or more complex than an ordinary…