19-letter words containing d, r, u
- secondary qualities — one of the qualities attributed by the mind to an object perceived, such as color, temperature, or taste.
- secondary structure — the arrangement of a polypeptide into a regular alpha helix, beta structure, or random coil configuration by the formation of intramolecular hydrogen bonds along the length of the chain.
- semiconductor laser — a laser in which a semiconductor is the light-emitting source, used in many medical procedures.
- sexual reproduction — reproduction involving the union of gametes.
- sharp-tailed grouse — a grouse, Pedioecetes phasianellus, of prairies and open forests of western North America, similar in size to the prairie chicken but with a more pointed tail.
- sidereal hour angle — the angle, measured westward through 360°, between the hour circle passing through the vernal equinox and the hour circle of a celestial body.
- simple closed curve — a curve that is closed and that has no loops or points missing; a curve for which there exists a homeomorphism mapping it to a circle.
- sir wilfrid laurier — Sir Wilfrid [wil-frid;; French weel-freed] /ˈwɪl frɪd;; French wilˈfrid/ (Show IPA), 1841–1919, Canadian statesman: prime minister 1896–1911.
- slate-colored junco — the eastern subspecies of the dark-eyed junco, Junco hyemalis, having grayer plumage than the several western subspecies.
- smokestack industry — A smokestack industry is a traditional industry such as heavy engineering or manufacturing, rather than a modern industry such as electronics.
- sodium hydrosulfite — a white, crystalline, water-soluble powder, Na 2 S 2 O 4 , used as a reducing agent, especially in dyeing, and as a bleach.
- sodium hypochlorite — a pale-green, crystalline compound, NaOCl, unstable in air, soluble in cold water, decomposes in hot water: used as a bleaching agent for paper and textiles, in water purification, in household use, and as a fungicide.
- soft-shelled turtle — any of numerous aquatic turtles of the family Trionychidae, inhabiting North America, Asia, and Africa, having the shell covered with flexible, leathery skin instead of horny plates.
- solid of revolution — a three-dimensional figure formed by revolving a plane area about a given axis.
- south african dutch — the Boers.
- spider-hunting wasp — any solitary wasp of the superfamily Pompiloidea, having a slender elongated body: the fast-running female hunts spiders as a food store for her larvae
- staff-student ratio — the ratio of teachers to pupils or students in a school, college, or university
- standing broad jump — a jump for distance from a standing position.
- stanford university — (education) A University in the city of Palo Alto, California, noted for work in computing, especially artificial intelligence. See SAIL.
- stationery cupboard — a cupboard where things like paper, pens and paper clips are kept
- strangulated hernia — a hernia, especially of the intestine, that swells and constricts the blood supply of the herniated part, resulting in obstruction and gangrene.
- stratford-upon-avon — town in S Warwickshire, England, on the Avon: birthplace & burial place of Shakespeare: pop. of county district (called Stratford-on-Avon) 106,000
- stringed instrument — a musical instrument having strings as the medium of sound production, played with the fingers or with a plectrum or a bow: The guitar, the harp, and the violin are stringed instruments.
- strontium hydroxide — a white, slightly water-soluble powder, Sr(OH) 2 , or its crystalline octahydrate (strontium hydrate) used chiefly in the refining of beet sugar.
- submandibular gland — either of a pair of salivary glands located one on each side of and beneath the lower jaw.
- sulfureted hydrogen — hydrogen sulfide.
- sun-and-planet gear — a planetary epicyclic gear train.
- superannuation fund — a fund used for paying pensions
- supercritical fluid — A supercritical fluid is a fluid at a temperature and pressure at which there is no difference between liquid and gas.
- supreme de volaille — suprême (def 2).
- tarnished plant bug — a bug, Lygus lineolaris, of the family Miridae, that is a common and widely distributed pest of alfalfa and other legumes and of peach and other fruit trees.
- the underprivileged — those who are underprivileged
- the varangian guard — the bodyguard of the Byzantine emperor in the late 10th and 11th centuries, consisting of Varangians
- theatrical producer — a person who is responsible for all aspects of a theatrical production
- through and through — in at one end, side, or surface and out at the other: to pass through a tunnel; We drove through Denver without stopping. Sun came through the window.
- to be headquartered — to be based; to have headquarters (in a place)
- to break new ground — If you break new ground, you do something completely different or you do something in a completely different way.
- to change your mind — If you change your mind, or if someone or something changes your mind, you change a decision you have made or an opinion that you had.
- to do the drying-up — to dry dishes, cups, glasses, etc after they have been washed
- to hold your breath — If you hold your breath, you make yourself stop breathing for a few moments, for example because you are under water.
- to hold your tongue — If you hold your tongue, you do not say anything even though you might want to or be expected to, because it is the wrong time to say it.
- to keep your end up — If you have to keep your end up, or to keep up your end of something, you have to do something as well as other people, or as well as you are expected to do it.
- to lick your wounds — If you say that someone is licking their wounds, you mean that they are recovering after being defeated or made to feel ashamed or unhappy.
- to reserve judgment — If you reserve judgment on something, you refuse to give an opinion about it until you know more about it.
- to shudder to think — If you say that you shudder to think what would happen in a particular situation, you mean that you expect it to be so bad that you do not really want to think about it.
- to suck someone dry — If you say that someone is sucking something dry or milking it dry, you are criticizing them for taking all the good things from it until there is nothing left.
- to the prejudice of — to the detriment of
- to turn a blind eye — If you say that someone is turning a blind eye to something bad or illegal that is happening, you mean that you think they are pretending not to notice that it is happening so that they will not have to do anything about it.
- too good to be true — If you say that something seems too good to be true, you are suspicious of it because it seems better than you had expected, and you think there may something wrong with it that you have not noticed.
- tourette's syndrome — a neurological disorder characterized by recurrent involuntary movements, including multiple neck jerks and sometimes vocal tics, as grunts, barks, or words, especially obscenities.