18-letter words containing k, r, a, d
- optical soundtrack — the final soundtrack on a motion picture, which appears as a band of black and white serrations along a strip of film to the left of the composite print. Light is shined through the serrations and is converted to audible sound.
- paper handkerchief — a handkerchief made from tissue paper
- prince of darkness — Satan.
- radiation sickness — sickness caused by irradiation with x-rays or other nuclear radiation as a result of therapeutic treatment, accidental exposure, or a nuclear bomb explosion and characterized by nausea, vomiting, headache, cramps, diarrhea, loss of hair and teeth, destruction of white blood cells, and prolonged hemorrhage.
- random walk theory — the theory that the future movement of share prices does not reflect past movements and therefore will not follow a discernible pattern
- risk based testing — (testing) Testing based on identification of potential risks (or "candidate risks"), which should be analysed by the project stakeholder or which might appear during the project's development.
- runge-kutta method — a numerical method, involving successive approximations, used to solve differential equations.
- schofield barracks — a town on central Oahu, in central Hawaii.
- sharp-shinned hawk — a North American hawk, Accipiter striatus, having extremely slender legs, a bluish-gray back, and a white, rusty-barred breast.
- shorthand notebook — a notebook used by a shorthand writer
- skin friction drag — aerodynamic resistance or drag due to the contact of moving air with the surface of an airplane, a glider, etc.
- snakes and ladders — Snakes and ladders is a British children's game played with a board and dice. When you go up a ladder, you progress quickly. When you go down a snake, you go backwards.
- strike an attitude — to assume a posture or pose, often an affected or theatrical one
- take a deep breath — If you say that you took a deep breath before doing something dangerous or frightening, you mean that you tried to make yourself feel strong and confident.
- take sth in stride — If you take a problem or difficulty in stride, you deal with it calmly and easily.
- tardive dyskinesia — a disorder characterized by restlessness and involuntary rolling of the tongue or twitching of the face, trunk, or limbs, usually occurring as a complication of long-term therapy with antipsychotic drugs.
- telford and wrekin — a unitary authority in W Central England, in Shropshire. Pop: 160 300 (2003 est). Area: 289 sq km (112 sq miles)
- the dark continent — a term for Africa when it was relatively unexplored
- the-dark-continent — Africa: so called, especially during the 19th century, because little was known about it.
- ticker-tape parade — a parade honoring a visiting dignitary, hero, or the like in which confetti, shredded newspapers, or the like are showered into the streets from buildings along the parade route.
- to clear the decks — If you clear the decks, you get ready to start something new by finishing any work that has to be done or getting rid of any problems that are in the way.
- to speak your mind — If you speak your mind, you say firmly and honestly what you think about a situation, even if this may offend or upset people.
- turk's-head cactus — a cactus, Melocactus communis, of Jamaica, having needlelike spines and a cylindrical body with a tawny-red, fezlike terminal part bearing red flowers.
- under lock and key — a device for securing a door, gate, lid, drawer, or the like in position when closed, consisting of a bolt or system of bolts propelled and withdrawn by a mechanism operated by a key, dial, etc.
- under the jackboot — If a country or group of people is under the jackboot, they are suffering because the government is cruel and undemocratic.
- vicar of wakefield — a novel (1766) by Goldsmith.
- watson-crick model — a widely accepted model for the three-dimensional structure of DNA, featuring a double-helix configuration for the molecule's two hydrogen-bonded complementary polynucleotide strands.
- western meadowlark — any of several American songbirds of the genus Sturnella, of the family Icteridae, especially S. magna (eastern meadowlark) and S. neglecta (western meadowlark) having a brownish and black back and wings and a yellow breast, noted for their clear, tuneful song.
- work-study program — a program enabling high-school or college students to combine academic work with actual job experience.
- wpa pre-shared key — Wi-Fi Protected Access Pre-Shared Key