16-letter words containing r, y, a, n
- ability grouping — a system whereby students are separated into different groups or classes according to test scores or relative scholastic ability, as to assure that gifted students are not inhibited by slower learners.
- abruptly pinnate — paripinnate.
- abscission layer — a layer of parenchyma cells that is formed at the bases of fruits, flowers, and leaves before abscission. As the parenchyma disintegrates, the organ becomes separated from the plant
- acanthopterygian — of, relating to, or belonging to the Acanthopterygii, a large group of teleost fishes having spiny fin rays. The group includes most saltwater bony fishes
- acetic anhydride — a colourless pungent liquid used in the manufacture of cellulose and vinyl acetates for synthetic fabrics. Formula: (CH3CO)2O
- acetyl promazine — acepromazine
- acetylandromedol — grayanotoxin.
- acetylene series — a group of similar hydrocarbons
- acrylic painting — a painting done with pigments in a solution of an acrylic resin: it dries quickly with a brilliance and depth comparable to those of both watercolor and oil paints
- actinopterygians — Plural form of actinopterygian.
- addition polymer — a polymer formed by the direct reaction of two or more monomers, and with no resulting water or other by-product.
- administratively — pertaining to administration; executive: administrative ability.
- advisory opinion — an opinion given by a court on a case that does not settle the case but sets out the court's view of how the law or the constitution would apply to that case
- african honeybee — killer bee.
- african mahogany — any of several African trees of the meliaceous genus Khaya, esp K. ivorensis, that have wood similar to that of true mahogany
- agency agreement — an agreement between a business and an agent appointed to promote its interests
- alexander nevsky — 1220?-63; Russ. military hero, statesman, & saint
- alimentary canal — The alimentary canal in a person or animal is the passage in their body through which food passes from their mouth to their anus.
- allegheny spurge — a low, shrubby evergreen plant, Pachysandra procumbens, having spikes of white or purplish flowers, native to the southeastern U.S. and widely cultivated as a ground cover.
- allele frequency — the frequency of occurrence or proportions of different alleles of a particular gene in a given population.
- alphanumerically — In an alphanumeric manner; using alphanumeric characters.
- alpine bearberry — a related species, A. alpina of European mountains, having black berries
- amebic dysentery — a form of dysentery caused by an amoeba (Entamoeba histolytica)
- american tragedy — a novel (1925) by Theodore Dreiser.
- amidinohydrazone — any of a group of pesticides, originally developed as antimalarial and antitubercular drugs, that impair cell respiration in cockroaches, red ants, and other insects.
- anagrammatically — In an anagrammatic manner.
- analytical entry — a bibliographic record of part of an item for which a comprehensive bibliographic record has been made, as a single play or essay in an anthology, a subject in a comprehensive work, or a part of a multivolume set of books.
- andrei vishinsky — Andrei Yanuarievich [uhn-dryey yi-noo-ah-ryi-vyich] /ʌnˈdryeɪ yɪ nuˈɑ ryɪ vyɪtʃ/ (Show IPA), 1883–1954, Soviet statesman.
- andromeda galaxy — a spiral galaxy, appearing to the naked eye as a fuzzy oval patch in the constellation Andromeda; it is a close neighbor to our own galaxy.
- angiographically — By the use of angiography.
- angular velocity — the velocity of a body rotating about a specified axis measured as the rate of change of the angle subtended at that axis by the path of the body
- animal husbandry — the science of breeding, rearing, and caring for farm animals
- animal sanctuary — a place where animals are brought to live and be protected
- anne of brittany — 1477–1514, wife of Maximilian I of Austria 1490–91; queen consort of Charles VIII of France 1491–98; queen consort of Louis XII of France 1499–1514.
- anomalistic year — the interval between two successive passages of the earth through perihelion; 365.25964 mean solar days
- antianxiety drug — any of various substances, as benzodiazepines, that are primarily used to treat various forms of anxiety and psychosomatic conditions.
- antihypertension — Pathology. elevation of the blood pressure, especially the diastolic pressure. an arterial disease characterized by this condition.
- antihypertensive — able to inhibit or control hypertension
- antiinflammatory — Alternative spelling of anti-inflammatory.
- antirecessionary — used to counteract or offest the economic effects of a recession: the president's antirecessionary program.
- antoinette perry — Antoinette, 1888–1946, U.S. actress, theatrical manager, and producer.
- anxiety disorder — any of various mental disorders characterized by extreme anxiety and including panic disorder, post-traumatic stress disorder, and generalized anxiety disorder
- anxiety neurosis — a relatively mild form of mental illness characterized by extreme distress and agitation, often occurring without any obvious cause
- appearance money — Appearance money is money paid to a famous person such as a sports star or film star for taking part in a public event.
- aratus of sicyon — 271–213 b.c, Greek general: leader of the Achaean League.
- archaeoastronomy — the scientific study of the beliefs and practices concerning astronomy that existed in ancient and prehistoric civilizations
- armed neutrality — military preparedness without commitment, especially as the expressed policy of a neutral nation in wartime; readiness to counter with force an invasion of rights by any belligerent power.
- ascending rhythm — rising rhythm.
- assembly routine — assembler (def 2a).
- astronomer royal — an honorary title awarded to an eminent British astronomer: until 1972, the Astronomer Royal was also director of the Royal Greenwich Observatory
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