16-letter words containing a, p, r, i
- caricature plant — a tropical Old World shrub, Graptophyllum pictum, of the acanthus family, characterized by purple or red tubular flowers and leaf markings resembling the profile of a human face.
- carnot principle — the principle that no heat engine can be more efficient than one operating on a Carnot cycle of reversible changes
- carpatho-ukraine — a region in W Ukraine: ceded by Czechoslovakia in 1945.
- carpenter gothic — (sometimes initial capital letters) a style of Victorian Gothic architecture adapted to the resources of contemporary woodworking tools and machinery.
- cartographically — the production of maps, including construction of projections, design, compilation, drafting, and reproduction.
- cartridge player — an audio or video system that reads cartridges of magnetic tape
- cascade particle — the least massive member of the xi particle family.
- castor-oil plant — a tall euphorbiaceous Indian plant, Ricinus communis, cultivated in tropical regions for ornament and for its poisonous seeds, from which castor oil is extracted
- catastrophically — of the nature of a catastrophe, or disastrous event; calamitous: a catastrophic failure of the dam.
- celestial empire — Chinese Empire
- celestial sphere — an imaginary sphere of infinitely large radius enclosing the universe so that all celestial bodies appear to be projected onto its surface
- centrifugal pump — a pump having a high-speed rotating impeller whose blades throw the water outwards
- cepheid variable — any of a class of variable stars with regular cycles of variations in luminosity (most ranging from three to fifty days). There is a relationship between the periods of variation and the absolute magnitudes, which is used for measuring the distance of such stars
- charged particle — an atomic particle with a positive or negative charge, as an electron, proton, or helium ion
- charmed particle — See at charmed (def 2).
- chemoautotrophic — producing organic matter by the use of energy obtained by oxidation of certain chemicals with carbon dioxide as the carbon source
- chemoprophylaxis — the prevention of disease using chemical drugs
- chemotherapeutic — of or used in chemotherapy
- chian turpentine — turpentine (def 2).
- child psychiatry — the branch of psychiatry specializing in the treatment of children.
- children's panel — (in Scotland) a group of representatives of relevant agencies, with the power to deal with a child under sixteen who is in criminal or family trouble. Its hearings are private and replace most of the functions of juvenile courts
- chinese shar-pei — Shar-Pei.
- chipping sparrow — a common North American sparrow, Spizella passerina, having brown-and-grey plumage and a white eye stripe
- chlordiazepoxide — a chemical compound used as a tranquillizer and muscle relaxant and in the treatment of delirium tremens. Formula: C16H14ClN3O
- chlorpheniramine — an antihistaminic compound, C 20 H 23 ClN 2 O 4 , used in treating the symptoms of allergies.
- cholangiographic — Relating to cholangiography.
- chondrodysplasia — (medicine) A genetic disorder characterized by short-limbed dwarfism.
- christmas hamper — a collection of seasonal delicacies, often housed in a wicker hamper, which people or organizations give as Christmas presents
- chromatographies — Plural form of chromatography.
- chromium plating — plating, often for decorative effect, made of chromium
- chromolithograph — a picture produced by chromolithography
- chryselephantine — (of ancient Greek statues) made of or overlaid with gold and ivory
- churidar pyjamas — long tight-fitting trousers, worn by Indian men and women
- chuvash republic — a constituent republic of W central Russia, in the middle Volga valley: generally low-lying with undulating plains and large areas of forest. Capital: Cheboksary. Pop: 1 313 900 (2002). Area: 18 300 sq km (7064 sq miles)
- civil air patrol — a voluntary organization performing emergency services, as assisting the U.S. Air Force on search missions, and offering aerospace-education and youth programs: founded 1941. Abbreviation: CAP.
- cleaning product — a detergent or other household cleaner
- cochlear implant — a device that stimulates the acoustic nerve in the inner ear in order to produce some form of hearing in people who are deaf from inner ear disease
- code of practice — A code of practice is a set of written rules which explains how people working in a particular profession should behave.
- colorado springs — a city and resort in central Colorado. Pop: 370 448 (2003 est)
- commercial paper — a short-term negotiable document, such as a bill of exchange, promissory note, etc, calling for the transference of a specified sum of money at a designated date
- commercial pilot — an airplane pilot licensed to transport passengers, goods, etc.
- common partridge — a small Old World gallinaceous game bird, Perdix perdix
- companion ladder — a ladder that allows sailors to move up and down between the decks of the ship
- compartmentalise — to divide into categories or compartments.
- compartmentalize — To compartmentalize something means to divide it into separate sections.
- compartmentation — subdivision of a hull into spaces enclosed by watertight bulkheads and sometimes by watertight decks.
- complex fraction — a fraction in which the numerator or denominator or both contain fractions
- complex variable — a variable to which complex numbers may be assigned as value.
- compression wave — a shock wave that compresses the medium through which it is transmitted.
- conspiratorially — the act of conspiring.