18-letter words containing a, e, r, o, t, h
- lagrange's theorem — the theorem that the order of each subgroup of a finite group is a factor of the order of the group.
- lake pontchartrain — a shallow lagoon in SE Louisiana, linked with the Gulf of Mexico by a narrow channel, the Rigolets: resort and fishing centre. Area: 1620 sq km (625 sq miles)
- lambeth conference — a convention of the bishops of the Anglican communion, held about every 10 years at Lambeth Palace to confer but not to define doctrine or to legislate on ecclesiastical matters.
- lay at the door of — to blame (a person) for
- lesser whitethroat — an Old World warbler, Sylvia curruca, having a greyish-brown plumage with a white throat and underparts
- liqueur chocolates — chocolates containing liqueur
- literae humaniores — (at Oxford University) the faculty concerned with Greek and Latin literature, ancient history, and philosophy; classics
- lonely hearts club — a club for people who are trying to find a lover or a friend
- look the other way — look in the opposite direction
- lower klamath lake — See under Klamath Lakes.
- lower palaeolithic — the earliest of the three sections of the Palaeolithic, beginning about 3 million years ago and ending about 70 000 bc with the emergence of Neanderthal man
- magnetorheological — (physics) describing a substance whose rheological properties are modified by a magnetic field.
- make short work of — exertion or effort directed to produce or accomplish something; labor; toil.
- maternity hospital — birthing facility
- mathematical error — a mistake in a mathematical calculation, etc
- menthol cigarettes — cigarettes that are flavoured with menthol
- merchant of venice — a comedy (1596?) by Shakespeare.
- metamorphic facies — Geology. a group of metamorphic rock units characterized by particular mineralogic associations.
- microsoft exchange — (messaging) Microsoft's messaging and enterprise collaboration server. Exchange's primary role is as an electronic mail message store but it can also store calendars, task lists, contact details, and other data.
- 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.
- morphine addiction — the fact or condition of being addicted to morphine
- moscow art theater — a Russian theatrical company founded in 1898 principally by Konstantin Stanislavski and famous for its naturalistic acting.
- 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.
- neighborhood watch — a neighborhood surveillance program or group in which residents keep watch over one another's houses, patrol the streets, etc., in an attempt to prevent crime.
- neo-pythagoreanism — a philosophical system, established in Alexandria and Rome in the second century b.c., consisting mainly of revived Pythagorean doctrines with elements of Platonism and Stoicism.
- nervous exhaustion — extreme mental and physical fatigue caused by excessive emotional stress; neurasthenia.
- neuroophthalmology — the branch of ophthalmology that deals with the optic nerve and other nervous system structures involved in vision.
- nightmare scenario — If you describe a situation or event as a nightmare scenario, you mean that it is the worst possible thing that could happen.
- nike of samothrace — a Greek marble statue (c200 b.c.) of Nike found at Samothrace and now in the Louvre, Paris.
- no laughing matter — sth serious
- non-characteristic — Also, characteristical. pertaining to, constituting, or indicating the character or peculiar quality of a person or thing; typical; distinctive: Red and gold are the characteristic colors of autumn.
- 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.
- north saskatchewan — a river in S central Canada, flowing E from the Rocky Mountains and joining the South Saskatchewan River to form the Saskatchewan River. 760 miles (1223 km) long.
- north truchas peak — a mountain in N New Mexico, near Santa Fe: one of the three Truchas Peaks. 13,110 feet (3999 meters).
- northeast by north — a point on the compass 11°15′ north of northeast. Abbreviation: NEbN.
- northeast corridor — the long, narrow strip of land between Boston, New York City, and Washington, D.C., containing many adjacent urban areas.
- northern cameroons — German Kamerun. a region in W Africa: a German protectorate 1884–1919; divided in 1919 into British and French mandates.
- 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 pretty sight — If you say that someone or something is not a pretty sight, you mean that it is not pleasant to look at.
- not breathe a word — to take air, oxygen, etc., into the lungs and expel it; inhale and exhale; respire.
- not have the heart — If you want to do something but do not have the heart to do it, you do not do it because you know it will make someone unhappy or disappointed.
- octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
- officer of the day — an officer who has charge of the guard and prisoners on an assigned day at a military installation. Abbreviation: OD, O.D., O.O.D.