18-letter words containing p, r, o, f
- half-open interval — a set of numbers between two given numbers but including only one endpoint.
- hilary of poitiers — Saint, a.d. c300–368, French bishop and theologian.
- hippocratic facies — the sallow facial expression, with listless staring eyes, often regarded as denoting approaching death
- hyperproliferation — (biology) An abnormally high rate of proliferation of cells by rapid division.
- hyposulfurous acid — an acid, H 2 S 2 O 4 , next in a series below sulfurous acid, known only in solution or in the form of its salts.
- in complete flower — a flower without one or more of the normal parts, as carpels, sepals, petals, pistils, or stamens.
- in praise of folly — Latin Moriae Encomium. a prose satire (1509) by Erasmus, written in Latin and directed against theologians and church dignitaries.
- in the grip of sth — If a person, group, or place is in the grip of something, they are being severely affected by it.
- indefinite pronoun — a pronoun, as English some, any, somebody, that leaves unspecified the identity of its referent.
- inspector of taxes — an official of HMRC whose work is to assess individuals' income tax liability
- learned profession — any of the three vocations of theology, law, and medicine, commonly held to require highly advanced learning. Compare profession (def 1).
- lone-parent family — a family in which there is only one parent
- make a practice of — be in the habit of
- marsilius of padua — c1280–1343? Italian scholar and political theorist.
- may flower compact — an agreement to establish a government, entered into by the Pilgrims in the cabin of the Mayflower on November 11, 1620.
- means of transport — vehicle or system of travel
- medical profession — the body of people who work as doctors of medicine
- metamorphic facies — Geology. a group of metamorphic rock units characterized by particular mineralogic associations.
- mezzo-soprano clef — a C clef locating middle C on the line next to the lowest line of the staff.
- misplaced modifier — Grammar. a word, phrase, or clause that seems to refer to or modify an unintended word because of its placement in a sentence, as when young in When young, circuses appeal to all of us.
- money for old rope — If you describe a payment as money for old rope, you are emphasizing that it is earned very easily, for very little effort.
- mop the floor with — that part of a room, hallway, or the like, that forms its lower enclosing surface and upon which one walks.
- morning-after pill — a contraceptive pill containing only an estrogen and used by women within a few hours after sexual intercourse.
- multiflow computer — (company) A now-defunct computer company, best known for its work in Very Long Instruction Word processors. Address: New Haven, Conn. USA.
- myeloproliferative — (medicine) of or pertaining to the presence of an abnormal proliferation of myelopoietic cells (from bone marrow).
- nonpreferentialism — of, relating to, or of the nature of preference: preferential policies.
- off-street parking — spaces for cars located on private property rather than on a public street
- offset lithography — offset (def 6).
- operating software — software used in the operation of a computer system, typically by performing such tasks as memory allocation, job scheduling, and input/output control
- pair of spectacles — a score of 0 in each innings of a match
- par for the course — an equality in value or standing; a level of equality: The gains and the losses are on a par.
- 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)
- peacekeeping force — a force designated to the maintenance of peace, esp the prevention of further fighting between hostile forces in an area
- pellitory of spain — a small Mediterranean plant, Anacyclus pyrethrum, the root of which contains an oil formerly used to relieve toothache: family Asteraceae (composites)
- people trafficking — the practice of bringing immigrants into a country illegally
- percussion flaking — a method of forming a flint tool by striking flakes from a stone core with another stone or a piece of bone or wood.
- perfect continuous — perfect progressive.
- perfect contrition — sincere penitence or remorse.
- perforated tracery — tracery, as in early Gothic architecture, formed of cut or pierced slabs of stone set on edge with the flat side outward.
- performance artist — an artist that is involved in a theatrical presentation that incorporates various art forms, such as dance, sculpture, music, etc
- 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
- pick of the litter — objects strewn or scattered about; scattered rubbish.
- pilotless aircraft — an aircraft equipped for operation by radio or by robot control, without a human pilot aboard; drone.
- point of departure — Nautical. the precise location of a vessel, established in order to set a course, especially in beginning a voyage in open water.
- point of no return — Aviation. the point in a flight at which an aircraft will lack sufficient fuel to return to its starting point.
- point of reference — A point of reference is something which you use to help you understand a situation or communicate with someone.
- population figures — population totals; statistics relating to the size of populations
- portrait of a lady — a novel (1881) by Henry James.
- potassium fluoride — a white, crystalline, hygroscopic, toxic powder, KF, used chiefly as an insecticide, a disinfectant, and in etching glass.