RNA |
any of several single-stranded nucleic acids containing the sugar ribose that occur in the cytoplasm of all living cells and are essential in protein synthesis; ribonucleic acid. |
roach1 |
a cockroach. |
roach2 |
a freshwater fish related to carp, found in northern Europe. [2 definitions] |
road |
a long, narrow course, often with a smooth and paved surface, made for the passage of vehicles and people. [3 definitions] |
roadability |
the degree of comfort and efficiency of a road vehicle. |
road agent |
a highway robber of stagecoaches, as in the nineteenth-century western United States. |
roadbed |
the bed, as of gravel or crushed stone, on which a railway is laid. [2 definitions] |
roadblock |
a barricade placed across the road to stop traffic and allow for inspection by police or to stop movement of the enemy by a military force. [3 definitions] |
road hog |
one who drives so as to obstruct other traffic moving in the same direction, as by occupying parts of both lanes simultaneously. |
roadhouse |
an inn, bar, restaurant, or nightclub on a country or suburban road. |
roadkill |
the remains of an animal killed by being struck by a car or other vehicle. [2 definitions] |
roadless |
combined form of road. |
road map |
a motorist's map that shows the routes, road types, mileage between towns, and the like for a specified region. |
road racing |
automobile racing on a course of or resembling public roads. |
roadrunner |
a ground-dwelling, swift North American cuckoo with a long tail, a crest, and streaked plumage. |
roadshow |
a show performed by a touring theatrical company. [2 definitions] |
roadside |
the side or edge of a road. [2 definitions] |
roadstead |
an area of water close to shore, but less protected than a harbor, in which ships can anchor. |
roadster |
an open automobile of earlier design, with a single seat for two or three passengers and either a large trunk or a rumble seat in the rear. |
road test |
a test made on the road under normal driving conditions to assess the quality of a vehicle's performance, undertaken esp. by a prospective buyer or by a mechanic servicing a vehicle in need of repair. [2 definitions] |
roadway |
the main part of a road, esp. that used by vehicles. [2 definitions] |