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15-letter words containing a, e, r, o

  • anacostia river — a river in the District of Columbia flowing into the Potomac River. about 24 miles (39 km) long.
  • analog computer — a mechanical, electrical, or electronic computer that performs arithmetical operations by using some variable physical quantity, such as mechanical movement or voltage, to represent numbers
  • anamorphic lens — a component in the optical system of a film projector for converting standard 35mm film images into wide-screen format
  • anchorage point — a point to which something such as the straps securing a childseat can be safely attached
  • ancient history — Ancient history is the history of ancient civilizations, especially Greece and Rome.
  • andrew of crete — a.d. c650–730, Greek poet and Orthodox archbishop of Crete.
  • andrographolide — (organic compound) A bitter labdane diterpenoid that is the main bioactive component of the medicinal plant Andrographis paniculata, effective against certain cancers.
  • andromonoecious — (of a plant species) having hermaphrodite and male flowers on the same plant
  • androstenedione — a weak hormone, C19H26O2, produced by the ovaries, testes, and adrenal glands as a precursor to estrogen, testosterone, etc.: formerly taken in a concentrated tablet or capsule form as by some bodybuilders
  • aneroid capsule — a box or chamber of thin metal, partially exhausted of air, used in the aneroid barometer and pressure altimeter.
  • anfractuosities — Plural form of anfractuosity.
  • angina pectoris — a sudden intense pain in the chest, often accompanied by feelings of suffocation, caused by momentary lack of adequate blood supply to the heart muscle
  • angle of repose — the maximum angle to the horizontal at which rocks, soil, etc, will remain without sliding
  • angry young men — a group of young writers in Great Britain after WWII, bitterly critical of upper-class and middle-class values, practices, etc.
  • angustirostrate — having a narrow, beak-like part
  • animal behavior — behavior (def 2).
  • anne of austria — 1601–66, wife of Louis XIII of France and daughter of Philip III of Spain: regent of France (1643–61) for her son Louis XIV
  • anne of denmark — 1574–1619, wife (from 1589) of James I of England and VI of Scotland
  • answer the door — When you answer the door, you go and open the door because a visitor has knocked on it or rung the bell.
  • antarctic ocean — the sea surrounding Antarctica, consisting of the most southerly parts of the Pacific, Atlantic, and Indian Oceans
  • anteprohibition — before prohibition.
  • anteroposterior — Relating to or directed toward both front and back.
  • anthony burgess — Anthony, 1917–93, English novelist and critic.
  • anthropocentric — regarding man as the most important and central factor in the universe
  • anthropogenesis — the study of the origins of man
  • anthropometrics — the science of measuring the size and proportions of the human body (called anthropometry), especially as applied to the design of furniture and machines.
  • anthropophagite — a cannibal
  • anti-censorship — the act or practice of censoring.
  • anti-commercial — of, relating to, or characteristic of commerce.
  • anti-globalizer — a political activist who challenges the concept of globalization and promotes practices that do not cause environmental damage
  • anti-productive — having the power of producing; generative; creative: a productive effort.
  • anti-revolution — an overthrow or repudiation and the thorough replacement of an established government or political system by the people governed.
  • anticarcinogens — Plural form of anticarcinogen.
  • anticholesterol — an agent which acts against cholesterol, either as an antibody produced naturally by many mammals or in the form of a drug
  • anticholinergic — blocking nerve impulses through the parasympathetic nerves
  • antiferromagnet — a material which exhibits antiferromagnetism
  • antiforeclosure — opposed to the process of foreclosure
  • antihemorrhagic — That stops or reduces hemorrhage.
  • antilock brakes — brakes fitted to some road vehicles that prevent skidding and improve control by sensing and compensating for overbraking
  • antiprogressive — opposed to or acting against progression in society
  • antiremonstrant — the party that opposed the Remonstrants
  • antiretrovirals — Plural form of antiretroviral.
  • antisegregation — opposed to or acting against segregration
  • antitheoretical — opposed to or contradicting a theory
  • antituberculous — (medicine) Acting to combat or counteract tuberculosis.
  • aortic stenosis — abnormal narrowing of the aorta, especially of its orifice, usually as a result of rheumatic fever or embryologic anomalies.
  • apartment block — building: flats, apartments
  • apartment hotel — a hotel that rents furnished apartments or suites suitable for housekeeping, on a weekly or more permanent basis, and usually supplies all hotel services.
  • apartment house — a building containing a number of residential apartments.
  • aphrodite terra — a large plateau region that stretches approximately halfway around the middle latitude of Venus.
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