12-letter words containing d, o, r, l, a
- pyramidology — a belief system based on the supposed occult significance of the Egyptian pyramids
- pyritohedral — of or relating to a pyritohedron
- quadrillions — Plural form of quadrillion.
- quadrinomial — consisting of four terms.
- radicicolous — living on the roots of plants
- radio galaxy — a galaxy that emits much more strongly in the radio part of the spectrum than does a typical galaxy.
- radio-collar — to attach a radio collar to (an animal).
- radiobiology — the branch of biology dealing with the effects of radiation on living matter.
- radioecology — the branch of ecology concerned with the effects of radioactivity on the environment
- radioelement — a radioactive element.
- radiolocator — radar.
- radiological — of or relating to radiology.
- radiolucency — almost entirely transparent to radiation; almost entirely invisible in x-ray photographs and under fluoroscopy.
- radionuclide — a radioactive nuclide.
- railroad car — a railway carriage or van
- railroad pen — a ruling pen for drawing two parallel lines.
- rally around — to bring into order again; gather and organize or inspire anew: The general rallied his scattered army.
- randallstown — a city in N Maryland, near Baltimore.
- rapeseed oil — a brownish-yellow oil obtained by expression from rapeseed and used chiefly as a lubricant, an illuminant, and in the manufacture of rubber substitutes.
- ravioli code — (jargon, humour) Object-oriented code consisting of a number of small and loosely-coupled software components. Presumably, the term is a compliment, contrasting the code with spaghetti code.
- record label — recorded music production company
- redelegation — a group or body of delegates: Our club sent a delegation to the rally.
- revalidation — to make valid; substantiate; confirm: Time validated our suspicions.
- rhode island — US state
- rhombohedral — a solid bounded by six rhombic planes.
- ripe old age — advanced age
- road haulage — transport of goods by road
- road haulier — a person who owns or works for a road haulage company; a trucker
- rocket salad — rocket2 (def 2).
- rocket-salad — any of various plants belonging to the genus Hesperis, of the mustard family, and related genera. Compare dame's rocket.
- rollaway bed — a bed on castors
- rolled glass — a sheet of glass made by the extrusion of molten glass between two rollers.
- rolled roast — meat that has had the bones removed and been rolled and tied for roasting.
- rollerblader — someone who skates using Rollerblades
- rolling road — A rolling road is a piece of machinery on which the wheels of a vehicle can ride in order to test how well the vehicle works under road conditions that are created artificially.
- roman candle — a firework consisting of a tube that sends out a shower of sparks and a succession of balls of fire.
- roundaboutly — in a roundabout manner
- royal pardon — release from punishment for an offence, granted by a monarch
- russian doll — wooden figures that nest inside one other
- saccharoidal — having a crystalline or granular texture: said esp. of some sandstones and marbles
- sacred lotus — Indian lotus.
- saddle horse — a horse bred, trained, or used for riding.
- sailboarding — windsurfing.
- salamandroid — an amphibian of the genus Salamandra
- san salvador — a republic in NW Central America. 13,176 sq. mi. (34,125 sq. km). Capital: San Salvador.
- sao salvador — a former name of Salvador (def 2).
- sardonically — characterized by bitter or scornful derision; mocking; cynical; sneering: a sardonic grin.
- scarlatinoid — resembling scarlatina or its eruptions.
- school board — a local board or committee in charge of public education.
- scout leader — the leader of a troop of Scouts