11-letter words containing r, a, i, n
- air command — the Canadian air force
- air current — a mass of air moving from one area to another
- air curtain — an air stream across a doorway to exclude draughts, etc
- air cushion — an inflatable cushion, usually made of rubber or plastic
- air station — an airfield, usually smaller than an airport but having facilities for the maintenance of aircraft
- air surfing — surfing that involves aerial stunts
- air turbine — a small turbine driven by compressed air, esp one used as a starter for engines
- airboarding — a snow sport in which participants slide down slopes headfirst lying flat on an inflatable board
- airbrushing — Present participle of airbrush.
- aircraftman — a serviceman of the most junior rank in the RAF
- aircraftmen — Plural form of aircraftman.
- airdropping — Present participle of airdrop.
- airlessness — The state or condition of being poorly ventilated; lacking good air circulation, having stale air.
- airsickness — a feeling of nausea and dizziness, sometimes accompanied by vomiting, as a result of the motion of the aircraft in which one is traveling.
- alabastrine — a finely granular variety of gypsum, often white and translucent, used for ornamental objects or work, such as lamp bases, figurines, etc.
- alan turing — (person) Alan M. Turing, 1912-06-22/3? - 1954-06-07. A British mathematician, inventor of the Turing Machine. Turing also proposed the Turing test. Turing's work was fundamental in the theoretical foundations of computer science. Turing was a student and fellow of King's College Cambridge and was a graduate student at Princeton University from 1936 to 1938. While at Princeton Turing published "On Computable Numbers", a paper in which he conceived an abstract machine, now called a Turing Machine. Turing returned to England in 1938 and during World War II, he worked in the British Foreign Office. He masterminded operations at Bletchley Park, UK which were highly successful in cracking the Nazis "Enigma" codes during World War II. Some of his early advances in computer design were inspired by the need to perform many repetitive symbolic manipulations quickly. Before the building of the Colossus computer this work was done by a roomful of women. In 1945 he joined the National Physical Laboratory in London and worked on the design and construction of a large computer, named Automatic Computing Engine (ACE). In 1949 Turing became deputy director of the Computing Laboratory at Manchester where the Manchester Automatic Digital Machine, the worlds largest memory computer, was being built. He also worked on theories of artificial intelligence, and on the application of mathematical theory to biological forms. In 1952 he published the first part of his theoretical study of morphogenesis, the development of pattern and form in living organisms. Turing was gay, and died rather young under mysterious circumstances. He was arrested for violation of British homosexuality statutes in 1952. He died of potassium cyanide poisoning while conducting electrolysis experiments. An inquest concluded that it was self-administered but it is now thought by some to have been an accident. There is an excellent biography of Turing by Andrew Hodges, subtitled "The Enigma of Intelligence" and a play based on it called "Breaking the Code". There was also a popular summary of his work in Douglas Hofstadter's book "Gödel, Escher, Bach".
- albert nile — a river in NW Uganda: part of the upper Nile River.
- albuminuria — the presence of albumin in the urine
- albuminuric — related to the state of albuminuria
- alcyonarian — any of various colonial anthozoans of the subclass Alcyonaria with eight tentacles and other body parts in branches or segments of eight
- aldermanity — the body of aldermen
- alessandria — a town in NW Italy, in Piedmont. Pop: 85 438 (2001)
- alexander i — c. 1080–1124, king of Scotland (1107–24), son of Malcolm III
- alexandrian — of or relating to Alexander the Great
- alexandrina — a female given name, form of Alexandra.
- alexandrine — a line of verse having six iambic feet, usually with a caesura after the third foot
- alexandrite — a green variety of chrysoberyl used as a gemstone
- algin fiber — an alkali-soluble fiber produced by injecting a fine stream of alkaline algin into an aqueous solution of a metallic salt, used chiefly in the manufacture of fine threads.
- alkyd resin — any synthetic resin made from a dicarboxylic acid, such as phthalic acid, and diols or triols: used in paints and adhesives
- all-nighter — an entertainment, such as a pop concert or film screening, that lasts all night
- all-terrain — designed to travel on all types of ground, including rough ground
- allocentric — Concerned with the interests of others more than one's own; community-minded.
- allochronic — (biology, of taxa) occurring in different geologic time.
- allopurinol — a synthetic drug that reduces blood concentrations of uric acid and is administered orally in the treatment of gout. Formula: C5H4N4O
- allyl resin — any of several thermosetting synthetic resins made by polymerizing esters of allyl alcohol with a dibasic acid. They are used as adhesives
- alterations — adjustments
- altercation — An altercation is a noisy argument or disagreement.
- alternating — happening in succession
- alternation — successive change from one condition or action to another and back again repeatedly
- alternative — If one thing is an alternative to another, the first can be found, used, or done instead of the second.
- amaranthine — of a dark reddish-purple colour
- ambiversion — a condition or character trait that includes elements of both introversion and extroversion
- amelanchier — A tree or shrub of a genus that includes the juneberries.
- amenorrheic — of or relating to amenorrhea
- americanism — An Americanism is an expression that is typical of people living in the United States of America.
- americanist — a person who studies some aspect of America, such as its history or languages
- americanize — to make or become American in outlook, attitudes, etc
- amino group — the univalent group, −NH 2 .
- amino resin — any thermosetting synthetic resin formed by copolymerization of amines or amides with aldehydes. Amino resins are used as adhesives and as coatings for paper and textiles
- amino-sugar — a monosaccharide with an amino or substituted amino group in place of a nonglycosidic hydroxyl group.