18-letter words containing r, u, d, e, l
- 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.
- instrument landing — an aircraft landing accomplished by use of gauges on the instrument panel and ground-based radio equipment, with limited reference to outside visual signals.
- 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
- laugh like a drain — to laugh loudly and coarsely
- left-eyed flounder — any of several flat-fishes of the family Bothidae, having both eyes on the left side of the head.
- 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.
- lunitidal interval — the period of time between the moon's transit and the next high lunar tide.
- mercurous chloride — calomel.
- mercury delay line — (storage, history) An archaic first-in first-out fixed time period data storage device using acoustic transducers to transmit data as waves in a trough or tube of mercury. EDSAC (Cambridge) and UNIVAC I used delay lines.
- middleburg heights — a town in N Ohio.
- milkweed butterfly — monarch butterfly.
- 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).
- 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
- needlestick injury — an injury that is caused by accidentally pricking the skin with a hypodermic needle
- netherlands guiana — a former name of Suriname.
- neural tube defect — any of a group of congenital abnormalities involving the brain and spinal cord, including spina bifida and meningocele, caused by failure of the neural tube to close properly during embryonic development.
- 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.
- numerical identity — the relation that holds between two relata when they are the selfsame entity, that is, when the terms designating them have the same reference
- on delicate ground — in a situation requiring tact
- order of australia — an order awarded to Australians for outstanding achievement or for service to Australia or to humanity at large; established in 1975
- parallel reduction — A form of applicative order reduction in which all redexes in an expression are reduced simultaneously. Variants include parallel outermost reduction and lenient reduction. See normal order reduction.
- paraurethral gland — any of a group of vestigial glands located in the posterior wall of the urethra in women.
- pedal steel guitar — an oblong, floor-mounted electrified guitar, usually having ten strings, fretted with a steel bar and producing a wailing sound that is modulated by use of a foot pedal.
- perceptual defence — the process by which it is thought that certain stimuli are either not perceived or are distorted due to their offensive, unpleasant, or threatening nature
- percussion welding — a form of resistance welding in which the required pressure is provided by a hammerlike blow.
- perpetual calendar — a calendar devised to be used for many years, as in determining the day of the week on which a given date falls.
- personal bodyguard — a person employed to protect a particular person
- piperonyl butoxide — a light-brown liquid, C 1 9 H 3 0 O 5 , used chiefly as a synergist in certain insecticides.
- plenary indulgence — a remission of the total temporal punishment that is still due to sin after absolution. Compare indulgence (def 6).
- potassium chloride — a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.
- potassium fluoride — a white, crystalline, hygroscopic, toxic powder, KF, used chiefly as an insecticide, a disinfectant, and in etching glass.
- pour cold water on — If someone pours cold water on a plan or idea, they criticize it so much that people lose their enthusiasm for it.
- predicate calculus — predicate logic
- presidential suite — a suite of rooms, as in a hotel, suitable for a president or other head of state.
- process scheduling — multitasking
- product life cycle — the four stages (introduction, growth, maturity, and decline) into one of which the sales of a product fall during its market life
- pseudotuberculosis — an acute, sometimes fatal disease of rodents, birds, and other animals, including humans, caused by the bacterium Yersinia (Pasteurella) pseudotuberculosis, and characterized by the formation of nodules resembling those that result from tuberculosis.
- public expenditure — spending by central government, local authorities, and public corporations