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18-letter words containing a, r, c, m, i

  • osteogenic sarcoma — osteosarcoma
  • ovariohysterectomy — Surgical removal of the ovaries and uterus.
  • pairs championship — an event in a sport such as tennis or darts open to pairs of competitors
  • palmer archipelago — a group of islands in the South Atlantic Ocean, off the NW coast of the Antarctic Peninsula.
  • pan american union — a former organization of American republics dedicated to furthering understanding and peace: replaced in 1970 by the secretariat of the Organization of American States.
  • parachute regiment — an airborne regiment of an army
  • parallactic motion — the apparent motion of stars due to the earth's orbital motion.
  • parallel computing — parallel processing
  • particeps criminis — an accomplice in a crime.
  • particulate matter — Particulate matter is solid or liquid particles in the air, which are measured in PM-10 units and are particles with a diameter of ten micrometers or less.
  • pci mezzanine card — (hardware)   (PMC) A family of low profile mezzanine cards for VMEbus, Futurebus+, desktop computers and other computer systems with logical and electrical layers based on the Peripheral Component Interconnect (PCI) specification. PMC is defined in IEEE P1386.1 and follows the Common Mezzanine Card (CMC) mechanical specification. PCI2.0 defines a 4.2 inch by 12.3 inch board that plugs perpendicularly into a mother board.
  • peppermint camphor — menthol.
  • perceptual mapping — the use of a graph or map in the development of a new product, in which the proximity of consumers' images of the new product to those of an ideal product provide an indication of the new product's likely success
  • performance artist — an artist that is involved in a theatrical presentation that incorporates various art forms, such as dance, sculpture, music, etc
  • pernicious anaemia — Pernicious anaemia is a very severe blood disease.
  • 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.
  • physical chemistry — the branch of chemistry dealing with the relations between the physical properties of substances and their chemical composition and transformations.
  • pneumatic conveyor — a tube through which powdered or granular material, such as cement, grain, etc is transported by a flow of air
  • polychromatophilic — having an affinity for more than one kind of stain, especially for acid, neutral, and basic stains, as polychromatophilic erythroblasts characteristic of pernicious anemia.
  • 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.
  • pragmatic sanction — any one of various imperial decrees with the effect of fundamental law.
  • principal argument — the radian measure of the argument between −π and π of a complex number. Compare argument (def 8c).
  • principal meridian — a meridian line accurately laid out to serve as the reference meridian in land survey
  • 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
  • production company — an organization which produces, films, plays, television or radio programmes
  • production manager — a supervisor of the budget, crew and other details in the production of a film or play
  • projection machine — an apparatus that projects motion pictures; projector.
  • promotion campaign — a campaign designed to encourage the sale of (a product) by advertising or securing financial support
  • 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
  • provision merchant — a person or company in the business of retailing food and other provisions
  • pulmonic airstream — a current of lung air set in motion by the respiratory muscles in the production of speech.
  • pyromucic aldehyde — furfural.
  • quick off the mark — If you are quick off the mark, you are quick to understand or respond to something. If you are slow off the mark, you are slow to understand or respond to something.
  • quinacrine mustard — a nitrogen mustard derived from mepacrine and used as a stain for chromosomes
  • racially motivated — motivated by (the hate or prejudice of) someone's race
  • radical empiricism — (in the philosophy of William James) the doctrine that the only proper subject matter of philosophy is that which can be defined in terms of experience, and that relations are a part of experience.
  • radiocommunication — communication by means of radio waves
  • radiometric dating — any method of determining the age of earth materials or objects of organic origin based on measurement of either short-lived radioactive elements or the amount of a long-lived radioactive element plus its decay product.
  • reaction formation — a behavioral tendency developed in direct opposition to a repressed impulse.
  • reactive component — the component in an alternating-current circuit that does not contribute power because it is 90° out of phase with the voltage or current.
  • real-time computer — a computer that can process data or information almost immediately
  • recess appointment — a person appointed to an office by the President of the United States without approval from the Senate because the Senate is in recess
  • reciprocating pump — A reciprocating pump is a pump which uses a backward and forward movement to move a fluid.
  • recruitment agency — company that places job candidates
  • registered company — a company which has officially registered its business
  • replacement engine — an engine used to replace or substitute an older or broken engine (in a vehicle, etc)
  • resistance plasmid — any of a group of bacterial plasmids carrying genetic information that provide resistance to antibiotic drugs: some resistance plasmids are able to transfer themselves, and hence resistance, during conjugation
  • restoration comedy — English comedy of the period of the Restoration, stressing manners and social satire.
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