15-letter words containing i, a, n
- antispeculative — opposed to or acting against speculation
- antitheoretical — opposed to or contradicting a theory
- antitraditional — opposed to or acting with disregard for tradition
- antitranspirant — any substance that decreases transpiration and, usually, photosynthesis
- antitrinitarian — rejecting or opposed to the Christian doctrine of the Holy Trinity
- antituberculous — (medicine) Acting to combat or counteract tuberculosis.
- antivivisection — opposed to the act or practice or performing experiments on living animals, involving cutting into or dissecting the body
- aortic stenosis — abnormal narrowing of the aorta, especially of its orifice, usually as a result of rheumatic fever or embryologic anomalies.
- aplastic anemia — a form of anemia resulting from a failure of the bone marrow to produce adequate quantities of the essential blood components, including leukocytes and platelets
- apolipoproteins — Plural form of apolipoprotein.
- apostolicalness — The state or quality of being apostolical.
- appalachian tea — any of various plants, as withe rod, whose leaves were used locally for tea in pioneer times
- appeal tribunal — An appeal tribunal is a special court or committee that is formed to reconsider a decision made by another court or committee.
- appendicularian — of or relating to a family of molluscs (Appendicularia) characterized by their long tail appendages
- apple macintosh — Macintosh
- apprentice work — work done when young and a novice
- apprenticeships — Plural form of apprenticeship.
- appropinquation — the action of approaching
- appropriateness — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- approval rating — approval of a politician as shown by opinion polls
- approximateness — The quality of being approximate.
- aqueous ammonia — ammonia (def 2).
- aqueous-ammonia — a colorless, pungent, suffocating, highly water-soluble, gaseous compound, NH 3 , usually produced by the direct combination of nitrogen and hydrogen gases: used chiefly for refrigeration and in the manufacture of commercial chemicals and laboratory reagents.
- arabian jasmine — a climbing shrub, Jasminum sambac, of India, having hairy branches and very fragrant white flowers that turn purple with age, used in making jasmine tea; sampaguita.
- arabic numerals — the figures 1, 2, 3, 4, 5, 6, 7, 8, 9, and the 0 (zero) that originated in India; Hindu-Arabic numerals
- arbitration bar — a bar of cast iron used as a sample for the batch to which it belongs.
- archaeobotanist — A person engaged in archaeobotany.
- architectonical — Alternative form of architectonic.
- argumentatively — fond of or given to argument and dispute; disputatious; contentious: The law students were an unusually argumentative group.
- ariboflavinosis — a condition resulting from a dietary deficiency of riboflavin
- aristotelianism — a philosophical tradition based on the wide-ranging belief system of Aristotle
- arithmetic mean — an average value of a set of integers, terms, or quantities, expressed as their sum divided by their number
- armenian church — the national Church of Armenia, founded in the early fourth century ad, the dogmas and liturgy of which are similar to those of the Orthodox Church
- armour-piercing — capable of penetrating armour plate
- arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
- arrivals lounge — a waiting area for people meeting passengers
- arrondissements — Plural form of arrondissement.
- arterialization — to convert (venous blood) into arterial blood by the action of oxygen in the lungs.
- arthur brisbane — Arthur, 1864–1936, U.S. journalist.
- artificial gene — a duplicate gene synthesized in the laboratory by combining nucleotides in a sequence characteristic of the copied gene.
- artificialness' — made by human skill; produced by humans (opposed to natural): artificial flowers.
- artillery plant — any of various tropical urticaceous plants of the genus Pilea, such as P. microphylla, all having stamens that discharge their pollen explosively
- ascending colon — the first portion of the colon, beginning at the cecum in the lower right abdominal cavity and continuing upward along the right posterior abdominal wall to approximately the lower ribs.
- ascending scale — a scale that is rising in pitch
- asian influenza — pandemic influenza caused by a strain of the influenza virus first isolated in Singapore in 1957
- asian shorthair — a generic term for a group of breeds of short-haired cat of Burmese type, including the Bombay
- asset-stripping — If a person or company is involved in asset-stripping, they buy companies cheaply, sell off their assets to make a profit, and then close the companies down.
- assign a policy — If you assign a policy, you transfer legal ownership of an insurance policy to another person.
- assimilationism — the theory of promoting the incorporation and mixing of different groups in society
- assimilationist — a person who favours and promotes the incorporation and mixing of different groups in society