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18-letter words containing p, s, o, r

  • parallel resonance — the resonance that results when circuit elements are connected with their inductance and capacitance in parallel, so that the impedance of the combination rises to a maximum at the resonant frequency
  • parathyroid glands — any of several small oval glands usually lying near or embedded in the thyroid gland.
  • pass the hat round — to collect money, as for a cause
  • passing-out parade — a ceremonial parade of cadets who have completed their training
  • passive vocabulary — all the words, collectively, that a person can understand
  • 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
  • pay one's respects — a particular, detail, or point (usually preceded by in): to differ in some respect.
  • peasant proprietor — a peasant who owns land, especially the land he or she tills.
  • pectoral sandpiper — an American sandpiper, Calidris melanotos, the male of which, when courting, inflates its chest conspicuously.
  • pellitory of spain — a small Mediterranean plant, Anacyclus pyrethrum, the root of which contains an oil formerly used to relieve toothache: family Asteraceae (composites)
  • pensioneer trustee — (in Britain) a person authorized by HMRC to oversee the management of a pension fund
  • people's democracy — (in Communist ideology) a country or form of government in transition from bourgeois democracy to socialism. In this stage there is more than one class, the largest being the proletariat, led by the Communist Party, which is therefore the dominant power
  • 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.
  • percussion section — orchestra, group: drums, etc.
  • percussion welding — a form of resistance welding in which the required pressure is provided by a hammerlike blow.
  • perfect continuous — perfect progressive.
  • performance artist — an artist that is involved in a theatrical presentation that incorporates various art forms, such as dance, sculpture, music, etc
  • perish the thought — to die or be destroyed through violence, privation, etc.: to perish in an earthquake.
  • pernicious anaemia — Pernicious anaemia is a very severe blood disease.
  • personal allowance — the amount of money you are allowed to earn each year without paying tax
  • personal assistant — aide
  • personal bodyguard — a person employed to protect a particular person
  • personal exemption — Your personal exemption is the amount of money that is deducted from your gross income before you have to start paying income tax.
  • personal insurance — insurance on personal risk, such as car insurance, health insurance or loss of earnings insurance
  • personal organizer — a small notebook with sections for personal information, as dates and addresses.
  • pescadores-islands — (used with a plural verb) Penghu.
  • peter tschaikowsky — Peter Ilyich [il-yich] /ˈɪl yɪtʃ/ (Show IPA), Tchaikovsky, Peter Ilyich.
  • peters' projection — a form of modified world map projection that attempts to reflect accurately the relative surface areas of landmasses, an approach which gives greater prominence (than do standard representations) to equatorial countries
  • petite bourgeoisie — the portion of the bourgeoisie having the least wealth and lowest social status; the lower middle class.
  • 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.
  • phosphatidylserine — any of a class of phospholipids occurring in biological membranes and fats
  • 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.
  • pilgrim's progress — an allegory (1678) by John Bunyan.
  • pilotless aircraft — an aircraft equipped for operation by radio or by robot control, without a human pilot aboard; drone.
  • pitch-and-run shot — chip shot.
  • plains grasshopper — a large, destructive short-horned grasshopper, Brachystola magna, of the western U.S., marked by pinkish hind wings.
  • plight one's troth — to make a promise of marriage
  • political prisoner — sb imprisoned for political dissidence
  • polynesian tattler — a sandpiper, H. incanus, native to the Pacific coastal regions
  • polystyrene cement — a purpose-made adhesive for fixing rigid polystyrene
  • population figures — population totals; statistics relating to the size of populations
  • porter-house steak — Also called porterhouse steak. a choice cut of beef from between the prime ribs and the sirloin.
  • portuguese guinean — of or relating to Portuguese Guinea, a former name for Guinea-Bissau, or its inhabitants
  • positively charged — having a positive charge
  • possessive pronoun — See at possessive (def 4a).
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