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18-letter words containing a, l, d, r

  • monophosphorylated — (biochemistry) phosphorylated with a single unit of phosphoric acid.
  • monte carlo method — a technique for numerically approximating the solution of a mathematical problem by studying the distribution of some random variable, often generated by a computer.
  • 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.
  • muscular dystrophy — a hereditary disease characterized by gradual wasting of the muscles with replacement by scar tissue and fat, sometimes also affecting the heart.
  • my lips are sealed — If you tell someone that your lips are sealed, you are promising them that you will keep a secret that they have told you.
  • national guardsman — guardsman (def 2).
  • natural childbirth — childbirth involving little or no use of drugs or anesthesia and usually involving a program in which the mother is psychologically and physically prepared for the birth process.
  • 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.
  • new zealand on air — the operational name for the New Zealand Broadcasting Commission
  • non-understandable — capable of being understood; comprehensible.
  • nonstriated muscle — smooth muscle
  • nord-pas-de-calais — a region of N France, on the Straits of Dover (the Pas de Calais): coal-mining, textile, and metallurgical industries
  • normally aspirated — A normally aspirated or naturally aspirated engine breathes air at atmospheric pressure.
  • 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
  • oak-leaf hydrangea — a shrub, Hydrangea quercifolia, of the southeastern U.S., having lobed leaves and pyramidal clusters of white flowers.
  • old low franconian — a Low German dialect of the Franks of the lower Rhine valley before c1100.
  • on delicate ground — in a situation requiring tact
  • on the danger list — critically ill in hospital
  • one's heart bleeds — used to express sympathetic grief, but often used ironically
  • operation overlord — the codename for the Allied invasion (June 1944) of northern France
  • optical disc drive — optical disk drive
  • optical disk drive — (hardware)   (Or "optical disc drive", "optical storage") A generic term for any device that reads and/or writes optical media, i.e. compact discs, DVDs and/or Blu-ray discs or future media that uses light (from a small laser) to read data off a removable, rotating disk. At least one such drive is commonly installed in most personal computers to allow them to play and/or record audio and video media and load and store data such as program installers. The floppy disk has been replaced by optical media due to its vastly greater capacity, e.g. 50,000 megabytes for a dual-layer blu-ray disc compared with 1.5 megabytes for a floppy (over 30,000 times as much).
  • 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
  • organic solidarity — social cohesiveness that is based on division of labor and interdependence and is characteristic of complex, industrial societies.
  • organized religion — institutionalized religion, usually with a hierarchical clergy and rules to govern the means by which adherents participate
  • oriental almandine — a variety of corundum resembling almandine in colour and used as a gemstone
  • orthophthalic acid — Chemistry. any of three isomeric acids having the formula C 8 H 6 O 4 , especially the ortho isomer (orthophthalic acid) a colorless, crystalline, slightly water-soluble solid used chiefly in the manufacture of dyes, medicine, and perfume.
  • overdraft facility — a facility (of a bank or building-society cheque account) that allows a withdrawal of money in excess of the account's credit balance
  • palm beach gardens — a city in SE Florida, near North Palm Beach.
  • 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.
  • parathyroid glands — any of several small oval glands usually lying near or embedded in the thyroid gland.
  • paraurethral gland — any of a group of vestigial glands located in the posterior wall of the urethra in women.
  • partial derivative — the derivative of a function with respect to one of its variables with all other variables held constant.
  • pectoral sandpiper — an American sandpiper, Calidris melanotos, the male of which, when courting, inflates its chest conspicuously.
  • 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.
  • people's democracy — (in Communist ideology) a country or form of government in transition from bourgeois democracy to socialism. In this stage there is more than one class, the largest being the proletariat, led by the Communist Party, which is therefore the dominant power
  • 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
  • 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
  • pescadores-islands — (used with a plural verb) Penghu.
  • peter and the wolf — a composition by Sergei Prokofiev written in 1936. It is a children's story with both music and text, spoken by a narrator accompanied by the orchestra
  • phantom withdrawal — the unauthorized removal of funds from a bank account using an automated teller machine
  • phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
  • phthalic anhydride — a white, crystalline, slightly water-soluble solid, C 8 H 4 O 3 , used chiefly in the manufacture of dyes, alkyd resins, and plasticizers.
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