18-letter words containing i, n, t, u, r
- iron (ii) sulphate — an iron salt with a saline taste, usually obtained as greenish crystals of the heptahydrate, which are converted to the white monohydrate above 100°C: used in inks, tanning, water purification, and in the treatment of anaemia. Formula: FeSO4
- isthmus of corinth — a narrow strip of land between the Gulf of Corinth and the Saronic Gulf: crossed by the Corinth Canal making navigation possible between the gulfs
- junior heavyweight — a boxer weighing up to 190 pounds (85.5 kg), between light heavyweight and heavyweight.
- junior lightweight — a boxer weighing up to 130 pounds (58.5 kg), between featherweight and lightweight.
- justice department — the United States federal department for enforcing federal laws
- keep your shirt on — refrain from losing your temper (often used as an exhortation to another)
- king's regulations — (in Britain and the Commonwealth when the sovereign is male) the code of conduct for members of the armed forces that deals with discipline, aspects of military law, etc
- last in, first out — The expression last in, first out is used to say that the last person who started work in an organization should be the first person to leave it, if fewer people are needed.
- last-in, first-out — an inventory plan based on the assumption that materials constituting manufacturing costs should be carried on the books at the market price of the last lot received. Abbreviation: LIFO. Compare first-in, first-out.
- laurentian plateau — (in Canada) the wide area of Precambrian rock extending west from the Labrador coast to the basin of the Mackenzie and north from the Great Lakes to Hudson Bay and the Arctic: rich in minerals
- lean manufacturing — efficiency in the production of goods
- leave in the lurch — a situation at the close of various games in which the loser scores nothing or is far behind the opponent.
- lenticular process — a method for producing images with a three-dimensional effect by photographing on lenticulated film.
- lieutenant general — a commissioned officer ranking next below a general and next above a major general.
- literae humaniores — (at Oxford University) the faculty concerned with Greek and Latin literature, ancient history, and philosophy; classics
- long hundredweight — a hundredweight of 112 pounds (50.8 kg), the usual hundredweight in Great Britain, but now rare in the U.S.
- 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.
- lunitidal interval — the period of time between the moon's transit and the next high lunar tide.
- magnesium arsenate — a white, water-insoluble powder, Mg 3 (AsO 4) 2 ⋅xH 2 O, used chiefly as an insecticide.
- magnesium stearate — Magnesium stearate is a salt that is often used as a diluent and lubricant in tablets and capsules.
- major tranquilizer — antipsychotic (def 2).
- manufacturing base — the manufacturing industries of an area or a country considered as a unit and a constituent part of the economy
- marine underwriter — an underwriter who specializes in marine insurance
- market opportunity — a situation in which a company can meet an unsatisfied customer need before its competitors
- marriage encounter — a meeting with a person or thing, especially a casual, unexpected, or brief meeting: Our running into each other was merely a chance encounter.
- melt in your mouth — to require little or no chewing
- microencapsulation — the process of enclosing chemical substances in microcapsules.
- microminiaturizing — Present participle of microminiaturize.
- mineral supplement — a pill containing minerals that you take to improve your health
- miniature pinscher — one of a German breed of toy dogs resembling a smaller version of the Doberman pinscher, having a flat skull, a smooth coat, erect ears, and a docked tail, bred originally as a watchdog.
- minor tranquilizer — antianxiety drug.
- misunderestimation — (nonstandard) An inaccurate underestimation, or an act of misunderestimating.
- mixed-flow turbine — a water turbine in which water flows radially and axially through the rotating vanes
- 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 genetics — a subdivision of genetics concerned with the structure and function of genes at the molecular level.
- mortgage insurance — policy to compensate for property loan payments
- mosquito repellent — a chemical substance, such as a spray or lotion, applied to the body to prevent mosquitoes biting
- mountain cranberry — cowberry
- multi-user dungeon — Multi-User Dimension
- multiple ownership — ownership by several people or organizations
- musical instrument — music
- national guardsman — guardsman (def 2).
- national insurance — In Britain, national insurance is the state system of paying money to people who are ill, unemployed, or retired. It is financed by money that the government collects from people who work, or from their employers.
- 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.
- natural convection — Natural convection is the loss of heat from a hot solid or liquid into air which is not artificially agitated.
- natural philosophy — natural science.
- natural resistance — natural immunity.
- naval architecture — the science of designing ships and other waterborne craft.
- 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.
- needlestick injury — an injury that is caused by accidentally pricking the skin with a hypodermic needle