18-letter words containing o, l, d, r, u
- floating underflow — underflow
- fluorodeoxyglucose — (carbohydrate) A fluorine analog of glucose that is used in positron emission tomography.
- four-legged friend — a four-legged animal, esp a dog
- frederick douglass — Frederick, 1817–95, U.S. ex-slave, abolitionist, and orator.
- fulminating powder — powder that explodes by percussion.
- gabriele dannunzio — Gabriele [Italian gah-bree-e-le] /Italian ˌgɑ briˈɛ lɛ/ (Show IPA), (Duca Minimo) 1863–1938, Italian soldier, novelist, and poet.
- golden opportunity — perfect chance
- grand council fire — a formal gathering of camp fire members requiring a minimum attendance of three troops.
- ground rule double — a safe hit ruled for two bases according to the rules of a particular stadium, as when a fly ball bounces once in the outfield and then clears a fence.
- guidance counselor — advisor in schools
- head and shoulders — If you say that someone or something stands head and shoulders above other people or things, you mean that they are a lot better than them.
- hydroflumethiazide — A diuretic drug.
- hydrofluorocarbons — Plural form of hydrofluorocarbon.
- hydroxychloroquine — a colorless crystalline solid, C 18 H 26 ClN 3 O, used in the treatment of malaria, lupus erythematosus, and rheumatoid arthritis.
- hyposulfurous acid — an acid, H 2 S 2 O 4 , next in a series below sulfurous acid, known only in solution or in the form of its salts.
- indolebutyric acid — a white or yellowish, crystalline, water-insoluble powder, C 12 H 13 O 2 N, a plant hormone similar to indoleacetic acid and used for the same purposes.
- inductive relation — A relation R between domains D and E is inductive if for all chains d1 .. dn in D and e1 .. en in E,
- industrial diamond — a small often synthetic diamond, valueless as a gemstone, used in cutting tools, abrasives, etc
- informatory double — a double intended to inform one's partner that one has a strong hand and to urge a bid regardless of the strength of his or her hand.
- jerusalem syndrome — a delusive condition affecting some visitors to Jerusalem in which the sufferer identifies with a major figure from his or her religious background
- lay down your arms — If soldiers lay down their arms, they stop fighting and give up their weapons.
- left-eyed flounder — any of several flat-fishes of the family Bothidae, having both eyes on the left side of the head.
- liquid distributor — A liquid distributor is a device which is used to spread liquid when it enters a packed column (= a tall vessel with packing, used for separating substances).
- logarithmus dualis — (mathematics) (ld) Latin for logarithm base two. More commonly written as "log" with a subscript "2". Roughly the number of bits required to represent an integer.
- long hundredweight — a hundredweight of 112 pounds (50.8 kg), the usual hundredweight in Great Britain, but now rare in the U.S.
- lord chief justice — the presiding judge of Britain's High Court of Justice, the superior court of record for both criminal and civil cases.
- loschmidt's number — the number of molecules in one cubic centimeter of an ideal gas at standard temperature and pressure, equal to 2.687 × 10 19.
- low blood pressure — hypotension.
- marsilius of padua — c1280–1343? Italian scholar and political theorist.
- mato grosso do sul — a state of W central Brazil: formed in 1979 from part of Mato Grosso state. Capital: Campo Grande. Pop: 2 140 624 (2002). Area: 350 548 sq km (135 318 sq miles)
- mercurous chloride — calomel.
- mixed-flow turbine — a water turbine in which water flows radially and axially through the rotating vanes
- modular arithmetic — arithmetic in which numbers that are congruent modulo a given number are treated as the same. Compare congruence (def 2), modulo, modulus (def 2b).
- modulus of torsion — a coefficient of elasticity of a substance, expressing the ratio between the force per unit area (shearing stress) that laterally deforms the substance and the shear (shearing strain) that is produced by this force.
- molecular medicine — the study of disease or injury at the molecular or cellular level.
- mordovian republic — a constituent republic of W central Russia, in the middle Volga basin. Capital: Saransk. Pop: 888 700 (2002). Area: 26 200 sq km (10 110 sq miles)
- mucopolysaccharide — (formerly) glycosaminoglycan.
- multi-user dungeon — Multi-User Dimension
- muscular dystrophy — a hereditary disease characterized by gradual wasting of the muscles with replacement by scar tissue and fat, sometimes also affecting the heart.
- national guardsman — guardsman (def 2).
- neurodevelopmental — Of or pertaining to the development of neurological pathways in the brain.
- neuroendocrinology — the study of the anatomical and physiological interactions between the nervous and endocrine systems.
- non-understandable — capable of being understood; comprehensible.
- nonstriated muscle — smooth muscle
- norwegian elkhound — one of a breed of dogs having a short, compact body, short, pointed ears, and a thick, gray coat, raised originally in Norway for hunting elk and other game.
- nueva san salvador — Santa Tecla.
- old curiosity shop — a novel (1840–41) by Dickens.
- on delicate ground — in a situation requiring tact
- 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.
- order of australia — an order awarded to Australians for outstanding achievement or for service to Australia or to humanity at large; established in 1975