15-letter words containing r, o, l
- almirante brown — a city in E Argentina, near Buenos Aires.
- alopecia areata — loss of hair in circumscribed patches.
- alpha geminorum — Castor
- alpha radiation — alpha particles emitted from a radioactive isotope
- 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)
- alta california — a former Spanish colony of New Spain, in the modern-day states of California, Nevada, and N Arizona: ceded by Mexico to the United States 1848.
- altar of repose — a pedestal or niche upon which the sacraments are preserved from Maundy Thursday to Good Friday.
- 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.
- amaryllidaceous — of, relating to, or belonging to the Amaryllidaceae, a family of widely cultivated flowering plants having bulbs and including the amaryllis, snowdrop, narcissus, and daffodil
- ambrose channel — a ship channel at the entrance to New York harbor, near Sandy Hook. 7½ miles (12 km) long.
- ambrosia beetle — any of various small beetles of the genera Anisandrus, Xyleborus, etc, that bore tunnels into solid wood, feeding on fungi growing in the tunnels: family Scolytidae (bark beetles)
- ambulatory care — care given at a hospital to non-resident patients, including minor surgery and outpatient treatment
- american legion — an association of former member of the US armed forces
- americanologist — a foreign expert or specialist in American cultural or political matters: a leading Americanologist in the Kremlin.
- amphiarthrodial — a joint permitting only slight motion, as that between the vertebrae.
- 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.
- 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
- analogous color — Art. any one of a group of related colors that are near each other on the color wheel, a circular chart that shows gradations of color: Red, orange, and yellow are analogous colors. Compare complementary color (def 1a).
- anamorphic lens — a component in the optical system of a film projector for converting standard 35mm film images into wide-screen format
- andrographolide — (organic compound) A bitter labdane diterpenoid that is the main bioactive component of the medicinal plant Andrographis paniculata, effective against certain cancers.
- aneroid capsule — a box or chamber of thin metal, partially exhausted of air, used in the aneroid barometer and pressure altimeter.
- angle of repose — the maximum angle to the horizontal at which rocks, soil, etc, will remain without sliding
- animal behavior — behavior (def 2).
- animal charcoal — carbon obtained from the carbonization of organic tissue of animals.
- anisotropically — Physics. of unequal physical properties along different axes. Compare isotropic (def 1).
- annapolis royal — a town in SE Canada in W Nova Scotia on an arm of the Bay of Fundy: the first settlement in Canada (1605). Pop: 550 (2001)
- anthropobiology — the biological study of the human species
- anthropological — the science that deals with the origins, physical and cultural development, biological characteristics, and social customs and beliefs of humankind.
- anthropologists — Plural form of anthropologist.
- 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-historical — of, pertaining to, treating, or characteristic of history or past events: historical records; historical research.
- anti-revolution — an overthrow or repudiation and the thorough replacement of an established government or political system by the people governed.
- anticardiolipin — (medicine, immunology) Directed against cardiolipin.
- 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
- antiforeclosure — opposed to the process of foreclosure
- antilock brakes — brakes fitted to some road vehicles that prevent skidding and improve control by sensing and compensating for overbraking
- antimonarchical — opposed to the monarchy
- antirationalism — the opposition to rationalism
- antirationalist — opposed to rationalism
- antirationality — the opposition to rationality
- antiretrovirals — Plural form of antiretroviral.
- antitheoretical — opposed to or contradicting a theory
- antitraditional — opposed to or acting with disregard for tradition
- antituberculous — (medicine) Acting to combat or counteract tuberculosis.
- 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.