18-letter words containing p, r, o, h, e
- north truchas peak — a mountain in N New Mexico, near Santa Fe: one of the three Truchas Peaks. 13,110 feet (3999 meters).
- 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.
- octachlorobiphenyl — (organic compound) Either of twelve isomers of the polychlorinated biphenyl containing eight chlorine atoms.
- offset lithography — offset (def 6).
- open heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
- open-heart surgery — surgery performed on the exposed heart while a heart-lung machine pumps and oxygenates the blood and diverts it from the heart.
- optical brightener — an additive that dyes and brightens fabric or paper
- orthopedic surgery — corrective operation on bones or joints
- outer automorphism — an automorphism that is not an inner automorphism.
- outreach programme — a programme designed to help and encourage disadvantaged members of the community
- overhead projector — over one's head; aloft; up in the air or sky, especially near the zenith: There was a cloud overhead.
- 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.
- palaeoanthropology — the branch of anthropology concerned with primitive man
- palmer archipelago — a group of islands in the South Atlantic Ocean, off the NW coast of the Antarctic Peninsula.
- par for the course — an equality in value or standing; a level of equality: The gains and the losses are on a par.
- pass the hat round — to collect money, as for a cause
- pathname separator — (file system) The character used to separate elements of a path or pathname. Under Unix and POSIX.1 compliant systems the pathname separator is the (forward) slash, in MS-DOS backslash serves the same purpose. For obvious reasons the no directory or file name can contain this character.
- patron of the arts — someone who acts as a patron to or supports charities, organizations, and individuals that work in or concern the arts
- pave the way (for) — to prepare the way (for); facilitate the introduction (of)
- peppermint camphor — menthol.
- perish the thought — to die or be destroyed through violence, privation, etc.: to perish in an earthquake.
- 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
- 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.
- phoenician juniper — a type of juniper that is found in the Mediterranean region
- phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
- photoelectric cell — photocell.
- photoisomerization — isomerization induced by light.
- photomorphogenesis — plant development that is controlled by light.
- physical geography — the branch of geography concerned with natural features and phenomena of the earth's surface, as landforms, drainage features, climates, soils, and vegetation.
- physical inventory — To carry out a physical inventory is to count all the stock on hand.
- pick of the litter — objects strewn or scattered about; scattered rubbish.
- plains grasshopper — a large, destructive short-horned grasshopper, Brachystola magna, of the western U.S., marked by pinkish hind wings.
- 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
- plight one's troth — to make a promise of marriage
- 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.
- porter-house steak — Also called porterhouse steak. a choice cut of beef from between the prime ribs and the sirloin.
- positively charged — having a positive charge
- potassium chlorate — a white or colorless, crystalline, water-soluble, poisonous solid, KClO 3 , used chiefly as an oxidizing agent in the manufacture of explosives, fireworks, matches, bleaches, and disinfectants.
- potassium chloride — a white or colorless, crystalline, water-soluble solid, KCl, used chiefly in the manufacture of fertilizers and mineral water, and as a source of other potassium compounds.
- preparatory school — a private or parochial secondary school, especially one boarding its students and providing a college-preparatory education.
- prepare the ground — make conditions ready
- prerelease showing — a showing of a film before it goes on general release
- press photographer — a photographer who works for a newspaper, magazine, etc
- 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.
- prison authorities — the people in charge of running a prison
- probability theory — the theory of analyzing and making statements concerning the probability of the occurrence of uncertain events. Compare probability (def 4).
- 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