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18-letter words containing h, e, a, l, t, o

  • magnetorheological — (physics) describing a substance whose rheological properties are modified by a magnetic field.
  • make a meal of sth — If you think someone is taking more time and energy to do something than is necessary, you can say that they are making a meal of it.
  • maternity hospital — birthing facility
  • mathematical error — a mistake in a mathematical calculation, etc
  • mathematical logic — symbolic logic.
  • mathematical model — a representation of a system, process, etc, in mathematical terms
  • median lethal dose — the quantity of a lethal substance, as a poison or pathogen, or of ionizing radiation that will kill 50 percent of the organisms subjected to it in a specified time period. Symbol: LD 5 0.
  • menthol cigarettes — cigarettes that are flavoured with menthol
  • methylcyclohexanol — a colorless, aromatic, viscous liquid mixture, chiefly of the ortho and para forms of CH 3 C 6 H 1 0 OH, derived from cresol by hydrogenation: used chiefly as a solvent for rubber, cellulose, esters, and phenols.
  • middle paleolithic — See under Paleolithic.
  • middle-of-the-road — favoring, following, or characterized by an intermediate position between two extremes, especially in politics; moderate.
  • minister of health — a person appointed to head the government department of health
  • moccasin telegraph — the transmission of rumour or secret information; the grapevine
  • 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).
  • 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.
  • mount saint helens — a city in Merseyside, in NW England, near Liverpool.
  • move the goalposts — to change the aims of an activity to ensure the desired results
  • nailed to the wall — [like a trophy] Said of a bug finally eliminated after protracted, and even heroic, effort.
  • nebular hypothesis — the theory that the solar system evolved from a mass of nebular matter: prominent in the 19th century following its precise formulation by Laplace.
  • negative cash flow — the situation when income is less than payments
  • neuroophthalmology — the branch of ophthalmology that deals with the optic nerve and other nervous system structures involved in vision.
  • no laughing matter — sth serious
  • noninterchangeable — That cannot be interchanged with another.
  • north attleborough — a city in SE Massachusetts.
  • north polar region — the region of land and water surrounding the North Pole.
  • northern transvaal — province of South Africa, in the N part: 47,599 sq mi (123,280 sq km); pop. 5,202,000; cap. Pietersburg
  • not a hope in hell — If you say that someone has not got a hope in hell of doing something, you are emphasizing that they will not be able to do it.
  • not to have a clue — to be completely baffled
  • oath of allegiance — pledge to one's nation
  • octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
  • offset lithography — offset (def 6).
  • oil of catechumens — holy oil used in baptism, the ordination of a cleric, the coronation of a sovereign, or in the consecration of a church.
  • old man of the sea — (in The Arabian Nights' Entertainments) an old man who clung to the shoulders of Sindbad the Sailor for many days and nights.
  • on the danger list — critically ill in hospital
  • one's heart bleeds — used to express sympathetic grief, but often used ironically
  • optical brightener — an additive that dyes and brightens fabric or paper
  • oriental cockroach — a dark-brown cockroach, Blatta orientalis, thought to have originated in Asia but now nearly cosmopolitan in distribution.
  • oriental shorthair — any of a breed of domestic cat, similar to the Siamese but with greenish eyes and often a coat of a solid color
  • overnight telegram — a type of domestic telegram sent at a reduced rate with a minimum charge for 10 words or less and accepted until midnight for delivery the following day.
  • palaeoanthropology — the branch of anthropology concerned with primitive man
  • 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
  • phanerocrystalline — (of a rock) having the principal constituents in the form of crystals visible to the naked eye.
  • phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
  • photochemical smog — air pollution containing ozone and other reactive chemical compounds formed by the action of sunlight on nitrogen oxides and hydrocarbons, especially those in automobile exhaust.
  • physical education — systematic instruction in sports, exercises, and hygiene given as part of a school or college program.
  • physical inventory — To carry out a physical inventory is to count all the stock on hand.
  • phytohemagglutinin — a lectin, obtained from the red kidney bean, that binds to the membranes of T cells and stimulates metabolic activity, cell division, etc.
  • planned parenthood — an organization that gives out information on the planning of the number and spacing of the births of one's children, as through the use of birth-control measures
  • policeman's helmet — a Himalayan balsaminaceous plant, Impatiens glandulifera, with large purplish-pink flowers, introduced into Britain
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