15-letter words containing n, e, r, o
- all-or-none law — the principle that under given conditions the response of a nerve or muscle fiber to a stimulus at any strength above the threshold is the same: the muscle or nerve responds completely or not at all.
- allegoricalness — the quality of being allegorical
- allorecognition — The ability of an individual organism to distinguish its own tissues from those of another.
- almirante brown — a city in E Argentina, near Buenos Aires.
- alpha geminorum — Castor
- alpine accentor — a small bird of the sparrow family, Prunella collaris, found especially in mountain regions of S Europe and Asia
- alsace-lorraine — an area of NE France, comprising the modern regions of Alsace and Lorraine: under German rule 1871–1919 and 1940–44. Area: 14 522 sq km (5607 sq miles)
- aluminum borate — a white, granular, water-insoluble powder, 2Al 2 O 3 ⋅B 2 O 3 ⋅3H 2 O, used chiefly in the manufacture of crown glass.
- aluminum bronze — any of several alloys containing a high percentage of copper with from 5 to 11 percent aluminum and varying amounts of iron, nickel, manganese, and other elements.
- ambrose channel — a ship channel at the entrance to New York harbor, near Sandy Hook. 7½ miles (12 km) long.
- american copper — a malleable, ductile, metallic element having a characteristic reddish-brown color: used in large quantities as an electrical conductor and in the manufacture of alloys, as brass and bronze. Symbol: Cu; atomic weight: 63.54; atomic number: 29; specific gravity: 8.92 at 20°C.
- american cotton — upland cotton.
- american gothic — a painting (1930) by Grant Wood.
- american legion — an association of former member of the US armed forces
- american smooth — a style of competitive ballroom dancing which incorporates elements of Latin dance
- american wigeon — a bird of North America, Anas americana, that is similar to the wigeon; the male has a white crown
- americanization — Americanization is the process by which people or countries become more and more similar to Americans and the United States.
- americanologist — a foreign expert or specialist in American cultural or political matters: a leading Americanologist in the Kremlin.
- amyl propionate — a colorless liquid, C 8 H 16 O 2 , having an applelike odor, used chiefly as a scent in the manufacture of flavorings and perfume.
- an axe to grind — an ulterior motive
- 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