13-letter words containing a, d, s, t
- radio station — station (def 8).
- radiopacities — opaque to radiation; visible in x-ray photographs and under fluoroscopy (opposed to radiotransparent).
- radius vector — Mathematics. the length of the line segment joining a fixed point or origin to a given point.
- raison d'etat — a purely political reason for governmental action, based on the national interest and often violating principles of justice.
- raison d'etre — reason or justification for being or existence: Art is the artist's raison d'être.
- rapid transit — a system of public transportation in a metropolitan area, usually a subway or elevated train system.
- reality-based — (especially of television) portraying or alleging to portray events as they actually happened.
- reconsecrated — to make or declare sacred; set apart or dedicate to the service of a deity: to consecrate a new church building.
- reconsolidate — to bring together (separate parts) into a single or unified whole; unite; combine: They consolidated their three companies.
- redemonstrate — to make evident or establish by arguments or reasoning; prove: to demonstrate a philosophical principle.
- redesignation — an act of designating.
- reestablished — to found, institute, build, or bring into being on a firm or stable basis: to establish a university; to establish a medical practice.
- released time — time or a period allotted to a teacher apart from normal duties for a special activity, as personal research.
- repristinated — to restore to the first or original state or condition.
- resident head — someone who is charge of running and supervising a student residence
- residentially — of or relating to residence or to residences: a residential requirement for a doctorate.
- residual heat — heat that remains or lingers after something has been hot or heated up
- restandardize — to bring to or make of an established standard size, weight, quality, strength, or the like: to standardize manufactured parts.
- retransmitted — to send or forward, as to a recipient or destination; dispatch; convey.
- riding master — a person who teaches equitation.
- riding stable — a place where horses are kept for people to ride
- ring-streaked — having streaks or bands of color around the body.
- rogation days — Usually, rogations. Ecclesiastical. solemn supplication, especially as chanted during procession on the three days (Rogation Days) before Ascension Day.
- roosevelt dam — a dam on the Salt River, in central Arizona. 284 feet (87 meters) high; 1080 feet (329 meters) long.
- rupert's land — (formerly, in Canada) the territories granted by Charles II to the Hudson's Bay Company in 1670 and ceded to the Canadian Government in 1870, comprising all the land watered by rivers flowing into Hudson Bay
- saber-toothed — having long, saberlike upper canine teeth, sometimes extending below the margin of the lower jaw.
- sacerdotalism — the system, spirit, or methods of the priesthood.
- sacerdotalize — to submit (something) to sacerdotalism
- sachet-powder — a small bag, case, or pad containing perfuming powder or the like, placed among handkerchiefs, lingerie, etc., to impart a pleasant scent.
- sacred thread — a cord worn by Hindus of the three upper castes as a sign of being twice-born or initiated into the Vedas.
- saddle-stitch — to sew, bind, or decorate with a saddle stitch.
- sadomasochist — interaction, especially sexual activity, in which one person enjoys inflicting physical or mental suffering on another person, who derives pleasure from experiencing pain.
- safety device — A safety device is a piece of equipment such as a fire extinguisher, safety belt, or burglar alarm that reduces loss or damage from a fire, accident, or break-in.
- safety island — an area provided for the safety of pedestrians from vehicular traffic, as between lanes on a busy street or highway.
- saint andrews — a seaport in the Fife region, in E Scotland: resort; golf courses.
- saint bernard — Great, a mountain pass between SW Switzerland and NW Italy, in the Pennine Alps: Napoleon led his army through it in 1800; location of a hospice. 8108 feet (2470 meters) high.
- saint david's — a town in SW Wales, in Pembrokeshire: its cathedral was a place of pilgrimage in medieval times. Pop: 1627 (2001)
- saint leonard — a city in S Quebec, in E Canada: suburb of Montreal.
- saint-gaudens — Augustus, 1848–1907, U.S. sculptor, born in Ireland.
- sand bluestem — a grass, Andropogon hallii, native to the Great Plains, used as a cover crop for sand dunes.
- sand painting — the ceremonial practice among Navaho and Pueblo Indians of creating symbolic designs on a flat surface with varicolored sand.
- sand-yachting — the sport of riding in a sand yacht
- sandwich tern — a European tern, Sterna sandvicensis, that has a yellow-tipped bill, whitish plumage, and white forked tail, and nests in colonies on beaches, etc
- santo domingo — a republic in the West Indies, occupying the E part of the island of Hispaniola. 19,129 sq. mi. (49,545 sq. km). Capital: Santo Domingo.
- santos-dumont — Alberto [ahl-ber-too] /ɑlˈbɛr tʊ/ (Show IPA), 1873–1932, Brazilian aeronaut in France: designer and builder of dirigibles and airships.
- saturated fat — a type of single-bond animal or vegetable fat, as that found in butter, meat, egg yolks, and coconut or palm oil, that in humans tends to increase cholesterol levels in the blood. Compare saturated (def 3).
- sawdust trail — the road to conversion or rehabilitation, as for a sinner or criminal.
- scandal sheet — a newspaper or magazine that emphasizes scandal or gossip.
- scarfed joint — a lapped joint between two pieces of timber made by notching or grooving the ends and strapping, bolting, or gluing the two pieces together
- scatteredness — distributed or occurring at widely spaced and usually irregular intervals: scattered villages; scattered showers.