18-letter words containing c, o, m, p
- pollen mother cell — one of the mother cells that produce four microspores by meiosis.
- 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.
- polystyrene cement — a purpose-made adhesive for fixing rigid polystyrene
- 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.
- precious moonstone — moonstone (def 1).
- prism spectrometer — an optical device for measuring wavelengths, deviation of refracted rays, and angles between faces of a prism, especially an instrument (prism spectrometer) consisting of a slit through which light passes, a collimator, a prism that deviates the light, and a telescope through which the deviated light is viewed and examined.
- 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
- programmer's cheer — (humour) "Shift to the left! Shift to the right! Pop up, push down! Byte! Byte! Byte!" [Origin?]
- project management — leadership of a task or programme
- 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
- pseudo-competitive — of, pertaining to, involving, or decided by competition: competitive sports; a competitive examination.
- pseudo-symptomatic — pertaining to a symptom or symptoms.
- psychogalvanometer — a type of galvanometer for detecting and measuring psychogalvanic currents.
- psychopharmacology — the branch of pharmacology dealing with the psychological effects of drugs.
- public examination — an examination, such as a GCSE exam, that is set by a central examining board
- publishing company — a firm which publishes books
- pulmonic airstream — a current of lung air set in motion by the respiratory muscles in the production of speech.
- put the mockers on — stop, thwart
- pyromucic aldehyde — furfural.
- raman spectroscopy — a form of spectroscopy which uses the Raman effect for studying molecules
- 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.
- registered company — a company which has officially registered its business
- repeat performance — sth done again
- room occupancy tax — Room occupancy tax is a tax that guests at a hotel have to pay in order to stay there.
- self-comprehending — to understand the nature or meaning of; grasp with the mind; perceive: He did not comprehend the significance of the ambassador's remark.
- self-contemplation — the act or process of thinking about oneself or one's values, beliefs, behavior, etc.
- semiprecious stone — See at semiprecious.
- shipping documents — documents relating to the sending of a shipment of goods, for example containing details of contents, weight, value etc.
- shotgun microphone — a directional microphone with a narrow-angle range of sensitivity.
- sleeping policeman — a bump built across roads, esp in housing estates, to deter motorists from speeding
- sling psychrometer — a psychrometer so designed that the wet-bulb thermometer can be ventilated, to expedite evaporation, by whirling in the air.
- spackling compound — spackle
- spectrocolorimetry — the quantitative measure of colors by spectrophotometry.
- spectrofluorimeter — an instrument in which the spectrum of secondarily emitted fluorescent light is used to identify chemical compounds.
- spectrofluorometer — an instrument in which the spectrum of secondarily emitted fluorescent light is used to identify chemical compounds.
- spectropolarimeter — an instrument for determining the extent to which plane-polarized light of various wavelengths is rotated by certain solutions, consisting of a combination of a spectroscope and a polarimeter.
- spherical geometry — the branch of geometry that deals with figures on spherical surfaces.
- subatomic particle — physics:
- subject complement — a word or a group of words, usually functioning as an adjective or noun, that is used in the predicate following a copula and describes or is identified with the subject of the sentence, as sleepy in The travelers became sleepy.
- subsidiary company — a company whose controlling interest is owned by another company.