16-letter words containing r, i
- aluminium bronze — any of a range of copper alloys that contain between 5 and 10 per cent aluminium
- aluminum carbide — a yellow, crystalline solid, Al 4 C 3 , that reacts with water to form methane.
- aluminum nitrate — a white, crystalline, water-soluble solid, Al(NO 3) 3 ⋅9H 2 O, used chiefly as a mordant in dyeing cotton.
- alvarez quintero — Joa‧ˈquín (hwɑˈkin ) ; hwäkēnˈ) 1873-1944; Sp. playwright
- amaryllis family — the plant family Amaryllidaceae, typified by herbaceous plants having alternate or basal lance-shaped leaves, bulbs or corms, and showy, lilylike flowers and including the amaryllis, daffodil, onion and its relatives, and snowdrop.
- ambidextrousness — The state or quality of being ambidextrous.
- ambulance driver — a person whose job is to drive an ambulance
- amebic dysentery — a form of dysentery caused by an amoeba (Entamoeba histolytica)
- amending formula — a specified process or procedure by which a constitution may be amended
- american bittern — any of several tawny brown herons that inhabit reedy marshes, as Botaurus lentiginosus (American bittern) of North America, and B. stellaris, of Europe.
- american buffalo — bison (def 1).
- american cowslip — shooting star (def 2).
- american english — the form of English spoken in the US
- american kestrel — a small American falcon (Falco sparverius) with a reddish-brown back and tail; sparrow hawk
- american mustard — a mild yellow mustard
- american spanish — Spanish as used in Latin America. Abbreviation: AmerSp.
- american tragedy — a novel (1925) by Theodore Dreiser.
- amerigo vespucci — Amerigo [uh-mer-i-goh;; Italian ah-me-ree-gaw] /əˈmɛr ɪˌgoʊ;; Italian ˌɑ mɛˈri gɔ/ (Show IPA), (Americus Vespucius) 1451–1512, Italian merchant, adventurer, and explorer after whom America was named.
- 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.
- aminocitric acid — an amino acid, C 6 H 9 O 7 N, that is a component of calf thymus ribonucleoprotein.
- aminotransferase — transaminase.
- ammonium nitrate — a colourless highly soluble crystalline solid used mainly as a fertilizer and in explosives and pyrotechnics. Formula: NH4NO3
- anabolic steroid — Anabolic steroids are drugs which people, especially athletes, take to make their muscles bigger and to give them more strength.
- anagrammatically — In an anagrammatic manner.
- anal intercourse — a form of sexual intercourse in which the penis is inserted into the anus
- analog recording — a method of sound recording in which an input audio waveform is converted to an analogous waveform.
- 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.
- ancestor worship — (in certain societies) the veneration of ancestors whose spirits are frequently held to possess the power to influence the affairs of the living.
- ancienne-lorette — a town in S Quebec, in E Canada.
- andreas vesalius — Andreas [ahn-dre-ahs] /ɑnˈdrɛ ɑs/ (Show IPA), 1514–64, Flemish anatomist.
- andrei vishinsky — Andrei Yanuarievich [uhn-dryey yi-noo-ah-ryi-vyich] /ʌnˈdryeɪ yɪ nuˈɑ ryɪ vyɪtʃ/ (Show IPA), 1883–1954, Soviet statesman.
- andromeda strain — a hypothetical microorganism, as might be developed from biological research, that if released would uncontrollably kill living things on earth
- angel-hair pasta — spaghetti made in very fine strands
- angiographically — By the use of angiography.
- anglo-australian — belonging, relating to, or involving England and Australia, or the people of the two countries.
- angular diameter — the angle that the apparent diameter of a celestial object subtends at the eye of the observer.
- 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
- anharmonic ratio — cross ratio.
- aniakchak crater — an active volcanic crater on the Alaskan Peninsula, with a diameter of 6 miles (10 km).
- 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
- animated cartoon — a film produced by photographing a series of gradually changing drawings, etc, which give the illusion of movement when the series is projected rapidly
- 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.
- annular ligament — any of various ligaments that encircle a part, such as the wrist, ankle, or trachea
- annus horribilis — a terrible year
- anode resistance — (of a vacuum tube at a given level of output) the ratio of a small change in voltage of the anode to the corresponding small change in anode current.
- anomalistic year — the interval between two successive passages of the earth through perihelion; 365.25964 mean solar days
- anopisthographic — a manuscript, parchment, or book having writing on only one side of the leaves.
- anorexia nervosa — an eating disorder primarily affecting adolescent girls and young women, characterized by pathological fear of becoming fat, distorted body image, excessive dieting, and emaciation.
- antarctic circle — the imaginary circle around the earth, parallel to the equator, at latitude 66° 32′ S; it marks the southernmost point at which the sun appears above the level of the horizon at the winter solstice