12-letter words containing a, p, r, i, o
- arsino group — the univalent group H 2 As−.
- arteriopathy — Any disease of the arteries.
- arthropathic — disease of the joints.
- arthroscopic — the use of an arthroscope to diagnose an injury to or disease of a joint or to perform minor surgery on a joint.
- aspect ratio — the ratio of width to height of the picture on a television or cinema screen
- aspirational — If you describe someone as aspirational, you mean that they have strong hopes of moving to a higher social status.
- assessorship — the occupation, post or duties of a person who assesses, advises, or estimates
- astrophysics — Astrophysics is the study of the physical and chemical structure of the stars, planets, and other natural objects in space.
- 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.
- australopith — (archaeology, anthropology, paleonotology) Of or pertaining to the extinct hominid primates, of the genus Australopithecus, from the Pleistocene period.
- autographing — Present participle of autograph.
- automorphism — the practice of seeing others as having the same characteristics as oneself
- 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
- barrow point — the northernmost tip of Alaska, on the Arctic Ocean
- basidiocarps — Plural form of basidiocarp.
- basidiospore — one of the spores, usually four in number, produced in a basidium
- bibliography — A bibliography is a list of books on a particular subject.
- biogeography — the branch of biology concerned with the geographical distribution of plants and animals
- biographical — Biographical facts, notes, or details are concerned with the events in someone's life.
- bipropellant — a rocket propellant consisting of two substances, usually a fuel and an oxidizer
- boating trip — a trip or holiday in a boat such as a sailing boat or canal boat
- body repairs — repairs to the bodywork of cars
- branch point — Electricity. a point in an electric network at which three or more conductors meet.
- bypass ratio — the ratio of the amount of air that bypasses the combustion chambers of an aircraft gas turbine to that passing through them
- camphorating — Present participle of camphorate.
- campo formio — a village in NE Italy, in Friuli-Venezia Giulia: scene of the signing of a treaty in 1797 that ended the war between revolutionary France and Austria
- 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
- caparisoning — Present participle of caparison.
- cape comorin — a headland at the southernmost point of India, in Tamil Nadu state
- capitulatory — the act of capitulating.
- capriciously — subject to, led by, or indicative of a sudden, odd notion or unpredictable change; erratic: He's such a capricious boss I never know how he'll react.
- capricornean — born under or characteristic of Capricorn
- capricornian — a person born under the sign of Capricorn, usually between December 22nd and January 19th.
- caproic acid — oily acid found in milk
- cardiographs — Plural form of cardiograph.
- cardiography — electrocardiograph.
- cardiophobia — An inordinate fear of heart disease.
- 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
- carisoprodol — a crystalline, water-soluble powder, C 12 H 24 N 2 O 4 , used as a muscle relaxant.
- cartographic — Of or pertaining to the making of maps.
- catadioptric — involving a combination of reflecting and refracting components
- cataphoresis — electrophoresis
- catastrophic — Something that is catastrophic involves or causes a sudden terrible disaster.