13-letter words containing s, k, u, r
- jerusalem oak — feather geranium.
- jesuit's bark — cinchona (def 2).
- key signature — (in notation) the group of sharps or flats placed after the clef to indicate the tonality of the music following.
- kick upstairs — to strike with the foot or feet: to kick the ball; to kick someone in the shins.
- knuckleduster — A metal guard worn over the knuckles in fighting to increase the effect of blows.
- kuril islands — a chain of 56 volcanic islands off the NE coast of Asia, extending for 1200 km (750 miles) from the S tip of the Kamchatka Peninsula to NE Hokkaido. Area: 14 990 sq km (6020 sq miles)
- lake sturgeon — a sturgeon, Acipenser fulvescens, of the Great Lakes and Mississippi and St. Lawrence rivers.
- lake superior — Lake, a lake in the N central United States and S Canada: the northernmost of the Great Lakes; the largest body of fresh water in the world. 350 miles (564 km) long; 31,820 sq. mi. (82,415 sq. km); greatest depth, 1290 feet (393 meters); 602 feet (183 meters) above sea level.
- lake-superior — Lake, a lake in the N central United States and S Canada: the northernmost of the Great Lakes; the largest body of fresh water in the world. 350 miles (564 km) long; 31,820 sq. mi. (82,415 sq. km); greatest depth, 1290 feet (393 meters); 602 feet (183 meters) above sea level.
- lasik surgery — laser surgery to correct short sight
- leptokurtosis — the state of being leptokurtic.
- leukapheresis — a medical procedure that separates certain leukocytes from the blood, used to collect leukocytes for donation or to remove excessive leukocytes from a patient's blood
- lubber's knot — an improperly made reef or square knot, likely to slip loose.
- lumberjackets — Plural form of lumberjacket.
- manrikigusari — a Japanese chain weapon with weighted ends, intended to strike or ensnare the enemy
- market square — a square in a village, town, etc in which a market is, or was formerly, held
- milk mushroom — any of the common latex-containing mushrooms of the genus Lactarius.
- milk products — dairy produce, items made with milk
- monster truck — a pick-up truck with extremely large tyres, often used for racing over rough terrain
- musselcracker — a large variety of sea bream, Sparodon durbanensis, that feeds on shellfish and is a popular food and game fish
- narrow squeak — an escape only just managed
- nervous wreck — sb anxious
- new brunswick — a province in SE Canada, E of Maine. 27,985 sq. mi. (72,480 sq. km). Capital: Fredericton.
- nickeliferous — containing or yielding nickel.
- nike hercules — a 40 feet (12 meters) U.S. surface-to-air missile effective at medium to high altitudes and having a range of more than 87 miles (140 km).
- niklaus wirth — (person) The designer of the Modula-2, Modula-3, and, in around 1970, Pascal programming languages.
- norwalk virus — a norovirus.
- on your marks — On your marks in British English, or on your mark in American English, is a command given to runners at the beginning of a race in order to get them into the correct position to start.
- outlaw strike — wildcat strike.
- paradise duck — a large duck, Casarca variegata, of New Zealand, having a brightly coloured plumage
- planet-struck — affected adversely by the supposed influence of a planet.
- platykurtosis — the state of being platykurtic.
- plunket nurse — a child-care nurse appointed by the Plunket Society
- pocket-square — a handkerchief, often colored or figured, worn in the breast pocket of a suit or blazer as a fashion accessory.
- pressure-cook — to cook in a pressure cooker.
- quaker-ladies — bluet (def 1).
- quaking grass — any of several grasses of the genus Briza, having spikelets with slender, drooping stalks.
- question mark — Also called interrogation point, interrogation mark. a mark indicating a question: usually, as in English, the mark (?) placed after a question.
- quick-release — (of part of a device, etc) capable of being detached quickly and easily
- raking course — a concealed course of bricks laid diagonally to the wall surface in a raking bond.
- ratushinskaya — Irina (ɪˈriːnə). born 1954, Russian poet and writer: imprisoned (1983–86) in a Soviet labour camp on charges of subversion. Her publications include Poems (1984), Grey is the Colour of Hope (1988), and The Odessans (1992)
- reduce a risk — If you reduce a risk, you lessen the potential damage that could be caused by a hazard or danger.
- requiem shark — any of numerous, chiefly tropical sharks of the family Carcharhinidae, including the tiger shark and soupfin shark.
- rescue worker — someone who works to bring people out of danger, attack, harm, etc, esp after a disaster, accident, etc
- resource fork — Macintosh file system
- return stroke — the main discharge in a lightning stroke
- return thanks — (of Christians) to say grace before a meal
- rhesus monkey — animal: macaque
- rock squirrel — a large, gray ground squirrel, Spermophilus variegatus, inhabiting rocky areas of the southwestern U.S.
- runner's knee — degeneration of cartilage in the knee, usually caused by excessive wear between the patella and lower end of the femur.