12-letter words containing p, e, r, i, o
- archiphoneme — an abstract linguistic unit representing two or more phonemes when the distinction between these has been neutralized: conventionally shown by a capital letter within slashes, as /T/ for /t/ and /d/ in German Rat and Rad
- aripiprazole — An antipsychotic drug used in the treatment of schizophrenia etc.
- aristophanes — ?448–?380 bc, Greek comic dramatist, who satirized leading contemporary figures such as Socrates and Euripides. Eleven of his plays are extant, including The Clouds, The Frogs, The Birds, and Lysistrata
- arpeggiation — the writing, playing or singing of arpeggios
- arsenopyrite — a white or grey metallic mineral consisting of a sulphide of iron and arsenic that forms monoclinic crystals with an orthorhombic shape: an ore of arsenic. Formula: FeAsS
- arteriopathy — Any disease of the arteries.
- aspect ratio — the ratio of width to height of the picture on a television or cinema screen
- assessorship — the occupation, post or duties of a person who assesses, advises, or estimates
- atmospherics — Atmospherics are elements in something such as a piece of music or a book which create a certain atmosphere.
- atmospherium — an optical system used to simulate images of atmospheric phenomena, as cloud formations, storms, and day and night, on the inside of a dome.
- atomic power — nuclear power.
- attorneyship — The office or profession of an attorney.
- azathioprine — a synthetic drug that suppresses the normal immune responses of the body and is administered orally during and after organ transplantation and also in certain types of autoimmune disease. Formula: C9H7N7O2S
- bachelorship — the state of being a bachelor; bachelorhood
- barophoresis — the diffusion of suspended particles at a rate dependent on external forces
- basidiospore — one of the spores, usually four in number, produced in a basidium
- beyond price — invaluable or priceless
- bimorph cell — a piezoelectric transducer consisting of two crystals cemented together, used in microphones, headphones, loudspeakers, etc. to convert vibrations into a voltage output or to convert a signal voltage into vibrations that can produce audible sounds
- biogeography — the branch of biology concerned with the geographical distribution of plants and animals
- bipropellant — a rocket propellant consisting of two substances, usually a fuel and an oxidizer
- bird of prey — A bird of prey is a bird such as an eagle or a hawk that kills and eats other birds and animals.
- bird-spotter — a bird-watcher
- blue pointer — a large shark, Isuropsis mako, of Australian coastal waters, having a blue back and pointed snout
- body repairs — repairs to the bodywork of cars
- bomber pilot — the pilot of a bomber
- buying power — the amount of services or goods a company, person, group or currency is able to purchase
- buying-power — Also called buying power. the ability to purchase goods and services.
- campodeiform — resembling insects of the genus Campodea
- cancerphobia — an excessive fear of getting cancer
- canine corps — a military or law enforcement body which uses dogs for the detection of explosives or drugs or for security, tracking, etc
- cape comorin — a headland at the southernmost point of India, in Tamil Nadu state
- capricornean — born under or characteristic of Capricorn
- cardioplegia — deliberate arrest of the action of the heart, as by hypothermia or the injection of chemicals, to enable complex heart surgery to be carried out
- cataphoresis — electrophoresis
- ceratopsians — Plural form of ceratopsian.
- ceroplastics — the art of wax modelling
- chairpersons — Plural form of chairperson.
- chalcopyrite — a widely distributed yellow mineral consisting of a sulphide of copper and iron in tetragonal crystalline form: the principal ore of copper. Formula: CuFeS2
- chemotrophic — any organism that oxidizes inorganic or organic compounds as its principal energy source.
- chemotropism — the growth response of an organism, esp a plant, to a chemical stimulus
- childproofed — Simple past tense and past participle of childproof.
- chili powder — Chili powder is a very hot-tasting powder made mainly from dried chilies. It is used in cooking.
- chirographer — Alternative form of chirographist.
- chiropterans — Plural form of chiropteran.
- chlorapatite — (mineral) A variety of apatite containing chloride instead of fluoride.
- chlorospinel — a variety of spinel used as a gem, colored grass-green by the presence of copper.
- christophene — chayote.
- cinque ports — an association of ports on the SE coast of England, originally consisting of Hastings, Romney, Hythe, Dover, and Sandwich, which from late Anglo-Saxon times provided ships for the king's service in return for the profits of justice in their courts. The Cinque Ports declined with the growth of other ports and surrendered their charters in 1685
- clipped form — a shortened form of a word, as for example doc for doctor
- clomipramine — A tricyclic, heterocyclic drug used to treat depression, anxiety and obsessive-compulsive disorder.