/sooh"peuhr huy'way, sooh'peuhr huy"way'/ , n.
1. a highway designed for travel at high speeds, having more than one lane for each direction of traffic, a safety strip dividing the two directions, and cloverleaves to route the traffic on and off the highway. Cf. expressway .
2. any very fast route or course.
[ 1925-30; SUPER- + HIGHWAY ]