12-letter words containing s, a, d, o
- radar sensor — a sensor on equipment used in radar, a method for detecting the position and velocity of a distant object
- radicicolous — living on the roots of plants
- radicivorous — feeding on the roots of plants
- radio source — a cosmic object or phenomenon, as a galaxy, pulsar, quasar, or the remnant of a supernova or of a galactic collision, that emits radio waves.
- radioisotope — a radioactive isotope, usually artificially produced: used in physical and biological research, therapeutics, etc.
- radiophonist — a person who produces radiophonic music
- 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.
- re-admission — the act of allowing to enter; entrance granted by permission, by provision or existence of pecuniary means, or by the removal of obstacles: the admission of aliens into a country.
- red goatfish — a goatfish, Mullus auratus.
- red nose day — a fund-raising day on behalf of the British charity organization Comic Relief, which culminates in a live telethon on BBC One
- respondentia — a loan upon a ship's cargo, which is repaid with interest if the ship reaches its destination, and if the ship does not, the loan is not repaid
- rhabdosphere — a minute sphere made up of rhabdoliths
- rhode island — US state
- rhodes grass — a grass, Chloris gayana, native to Africa, used as pasturage and fodder in warm climates.
- road surface — the surface of the road, often asphalt
- road sweeper — a person who sweeps roads
- 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.
- 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.
- rose diamond — a diamond, one side of which is flat, and the other cut into twenty-four triangular facets in two ranges which form a convex face pointed at the top
- run commands — (operating system) The expansion of the file name suffix, "rc", common to many Unix configuration files, e.g. .newsrc, .cshrc, .twmrc, elmrc, etc. Always abbreviated to /R C/ when spoken. Note, "rc" is not a typical filename extension as it doesn't start with a dot. The suffix "rc" derives from a script-creation utility in CTSS called "runcom".
- 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.
- sacred order — Roman Catholic Church. major order.
- saddle block — a type of spinal anaesthesia producing sensory loss in the buttocks, inner sides of the thighs, and perineum
- saddle horse — a horse bred, trained, or used for riding.
- saddle joint — (on a sill, coping, or the like) a vertical joint raised above the level of the washes on each side.
- saddle point — a point at which a function of two variables has partial derivatives equal to zero but at which the function has neither a maximum nor a minimum value.
- saddle shoes — shoes with a midsection (where the laces are) that is darker in colour, usually black, to the rest of the shoe, which is usually white
- safe conduct — If you are given safe conduct, the authorities officially allow you to travel somewhere, guaranteeing that you will not be arrested or harmed while doing so.
- safe-conduct — a document authorizing safe passage through a region, especially in time of war.
- safe-deposit — providing safekeeping for valuables: a safe-deposit vault.
- sago pudding — a sweet pudding made with sago and milk
- sailboarding — windsurfing.
- salamandroid — an amphibian of the genus Salamandra
- samurai bond — a bond issued in Japan and denominated in yen, available for purchase by nonresidents of Japan
- san bernardo — a city in central Chile, S of Santiago.
- san fernando — a city in E Argentina, near Buenos Aires.
- san salvador — a republic in NW Central America. 13,176 sq. mi. (34,125 sq. km). Capital: San Salvador.
- sand-floated — noting an exterior wall finish composed of mortar rubbed with sand and floated when it has partly set.
- sandbox tree — a tropical American tree, Hura crepitans, of the spurge family, bearing a furrowed, roundish fruit about the size of an orange that when ripe and dry bursts with a sharp report and scatters the seeds.
- sandrocottus — Greek name of Chandragupta.
- sao salvador — a former name of Salvador (def 2).
- sapindaceous — belonging to the Sapindaceae, the soapberry family of plants.
- sarcoadenoma — adenosarcoma.
- sardonically — characterized by bitter or scornful derision; mocking; cynical; sneering: a sardonic grin.
- sausage code — (humour, programming) Code which, once you know the details of how it's made, you'll never want to use again.