18-letter words containing c, o, r, n, h

octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
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 back burner — low priority
on the credit side — You say on the credit side in order to introduce one or more good things about a situation or person, usually when you have already mentioned the bad things about them.
optical brightener — an additive that dyes and brightens fabric or paper
organization chart — a diagrammatic representation showing how departments or divisions in an organization, as a large corporation, are related to one another along lines of authority.
oriental cockroach — a dark-brown cockroach, Blatta orientalis, thought to have originated in Asia but now nearly cosmopolitan in distribution.
orthotungstic acid — an oxyacid acid of tungsten. Formula: H2WO4
pairs championship — an event in a sport such as tennis or darts open to pairs of competitors
peppermint camphor — menthol.
phanerocrystalline — (of a rock) having the principal constituents in the form of crystals visible to the naked eye.
phantasmagorically — having a fantastic or deceptive appearance, as something in a dream or created by the imagination.
philharmonic pitch — a standard of pitch in which A above middle C is established at 440 vibrations per second.
phoenician juniper — a type of juniper that is found in the Mediterranean region
physical inventory — To carry out a physical inventory is to count all the stock on hand.
pitch-and-run shot — chip shot.
pollen mother cell — one of the mother cells that produce four microspores by meiosis.
polyvinyl chloride — a white, water-insoluble, thermoplastic resin, derived by the polymerization of vinyl chloride: used chiefly for thin coatings, insulation, and pipings.
price on sb's head — If there is a price on someone 's head, an amount of money has been offered for the capture or killing of that person.
process scheduling — multitasking
processionary moth — a moth of the family Thaumetopoeidae, esp the oak processionary moth (Thaumetopoea processionea), the larvae of which leave the communal shelter nightly for food in a V-shaped procession
projection machine — an apparatus that projects motion pictures; projector.
propaganda machine — the group of people, publications, etc, such as of a government, country etc, responsible for the organized dissemination of information, allegations, etc, to assist or damage the cause of a government, movement, etc
proton synchrotron — a synchrotron used for accelerating protons.
provision merchant — a person or company in the business of retailing food and other provisions
pseudo-anarchistic — a person who advocates or believes in anarchy or anarchism.
psychogalvanometer — a type of galvanometer for detecting and measuring psychogalvanic currents.
puerto rico trench — a depression in the ocean floor, N of Puerto Rico: includes deepest part of Atlantic Ocean, 28,374 feet (8648 meters).
purchasing officer — the member of staff in an organization who is responsible for buying goods or products
puss in the corner — a parlor game for children in which one player in the middle of a room tries to occupy any of the positions along the walls that become vacant as other players dash across to exchange places at a signal.
put the mockers on — stop, thwart
quite the contrary — not at all, the very opposite
reach for the moon — to desire or attempt something unattainable or difficult to obtain
recharacterization — portrayal; description: the actor's characterization of a politician.
residential school — (in Canada) a boarding school maintained by the Canadian government for Indian and Inuit children from sparsely populated settlements
rhondda cynon taff — a county borough in S Wales, created from part of Mid Glamorgan in 1996. Pop: 231 600 (2003 est). Area: 558 sq km (215 sq miles)
rhyming dictionary — a specialist dictionary organized by the final sounds of words, used to write poetry
rock cornish (hen) — Cornish (sense 3) Cornish (sense 3b)
roman architecture — buildings in style of ancient Rome
root canal therapy — endodontics.
rotary clothesline — an apparatus of radiating spokes that support lines on which clothes are hung to dry
rotten to the core — person: wicked
rubbish collection — the collection of domestic refuse for disposal
school for scandal — a comedy of manners (1777) by Richard Brinsley Sheridan.
school of motoring — a centre where people pay for lessons to learn to drive
scottish deerhound — one of a Scottish breed of large, tall hunting dogs having a medium-length, wiry, gray or reddish-fawn coat, originally developed for hunting and bringing down deer, and known as the royal dog of Scotland.
scratch one's head — If you say that someone is scratching their head, you mean that they are thinking hard and trying to solve a problem or puzzle.
scruff of the neck — If someone takes you by the scruff of the neck, they take hold of the back of your neck or collar suddenly and roughly.
search-and-destroy — designed to find and destroy by bombing etc
second-hand dealer — a person who deals in second-hand things, such as cars, or furniture

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