18-letter words containing o, t, a, h, e, i
- 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).
- morphine addiction — the fact or condition of being addicted to morphine
- mount saint helens — a city in Merseyside, in NW England, near Liverpool.
- 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
- 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.
- 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 polar region — the region of land and water surrounding the North Pole.
- northeast corridor — the long, narrow strip of land between Boston, New York City, and Washington, D.C., containing many adjacent urban areas.
- 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 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.
- oath of allegiance — pledge to one's nation
- 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.
- 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.
- on that/this score — You can use on that score or on this score to refer to something that has just been mentioned, especially an area of difficulty or concern.
- on the danger list — critically ill in hospital
- one's native heath — the place of one's birth or childhood
- 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
- outer automorphism — an automorphism that is not an inner automorphism.
- ovariohysterectomy — Surgical removal of the ovaries and uterus.
- over and done with — If you say that something is over and done with, you mean that it is completely finished and you do not have to think about it any more.
- 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.
- packet switch node — (PSN) A dedicated computer whose purpose is to accept, route and forward packets in a packet-switched network.
- paint the town red — a substance composed of solid coloring matter suspended in a liquid medium and applied as a protective or decorative coating to various surfaces, or to canvas or other materials in producing a work of art.
- peppermint camphor — menthol.
- peter tschaikowsky — Peter Ilyich [il-yich] /ˈɪl yɪtʃ/ (Show IPA), Tchaikovsky, Peter Ilyich.
- 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.
- photoisomerization — isomerization induced by light.
- photosensitization — to make (a material) photosensitive, as by the application of a photosensitive emulsion.
- 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.
- policeman's helmet — a Himalayan balsaminaceous plant, Impatiens glandulifera, with large purplish-pink flowers, introduced into Britain
- positively charged — having a positive charge