12-letter words containing n, a, i, r
- adulterating — Present participle of adulterate.
- adulteration — an adulterating or being adulterated
- adventurists — Plural form of adventurist.
- aeolian harp — a stringed instrument that produces a musical sound when a current of air or wind passes over the strings
- aerial input — a socket for an aerial
- aerification — an act of combining with air.
- aerodonetics — the study of soaring or gliding flight, esp the study of gliders
- aerodynamics — Aerodynamics is the study of the way in which objects move through the air.
- aeromagnetic — of magnetism in the atmosphere
- aeromechanic — an aircraft mechanic
- aeromedicine — the medical treatment of disorders associated with air or space travel
- aeronautical — Aeronautical means involving or relating to the design and construction of aeroplanes.
- aeroneurosis — a functional disorder of aeroplane pilots characterized by anxiety and various psychosomatic disturbances, caused by insufficient oxygen at high altitudes and the emotional tension of flying
- affine group — the group of all affine transformations of a finite-dimensional vector space.
- affirmations — Plural form of affirmation.
- affranchised — Simple past tense and past participle of affranchise.
- affrightment — the act of causing fear or alarm
- affrontingly — in an affronting manner
- aforestation — Alternative spelling of afforestation.
- african gray — an ashy-gray, African parrot, Psittacus erithacus, having a short, red tail, noted especially for its ability to mimic speech.
- african lily — an African plant (Agapanthus africanus) of the lily family with blue or white, funnel-shaped flowers
- african time — unpunctuality
- africanness' — Also, Africa. of or from Africa; belonging to the black peoples of Africa.
- afrikanerdom — (in South Africa) Afrikaner nationalism based on pride in the Afrikaans language and culture, conservative Calvinism, and a sense of heritage as pioneers
- afrikanerism — a word, term, or usage peculiar to or originating among Afrikaners.
- afrocentrism — centered on Africa or on African-derived cultures, as those of Brazil, Cuba, and Haiti: Afrocentric art.
- after-dinner — immediately following dinner: an after-dinner speech.
- afterburning — a process in which additional fuel is ignited in the exhaust gases of a jet engine to produce additional thrust
- aggrandising — Present participle of aggrandise.
- aggrandizing — Present participle of aggrandize.
- aggravations — Plural form of aggravation.
- aggregations — Plural form of aggregation.
- aggrievement — the state of being aggrieved
- aggrupations — Plural form of aggrupation.
- agribusiness — Agribusiness is the various businesses that produce, sell, and distribute farm products, especially on a large scale.
- agrippina ii — a.d. 16?–59? mother of the Roman emperor Nero and sister of Caligula.
- agrobusiness — the businesses collectively associated with the production, processing, and distribution of agricultural products.
- agroindustry — an activity combining agriculture and industry
- aileron roll — a roll consisting of one or more rotations, usually controlled by the use of ailerons.
- air cylinder — a cylinder containing air, esp one fitted with a piston and used for damping purposes
- air division — an organizational unit smaller than an air force, usually composed of a headquarters and two or more wings
- air drilling — Air drilling is a drilling method in which compressed air or nitrogen is used to cool the drill bit and lift cuttings out of the wellbore.
- air layering — a method of propagating a plant by girdling or cutting part way into a stem or branch and packing the area with a moist medium, as sphagnum moss, stimulating root formation so that the stem or branch can be removed and grown as an independent plant.
- air ministry — (in England) the department of government administering all civil and military matters concerning aviation.
- air terminal — An air terminal is a building in which passengers wait before they get on to an aeroplane.
- aircraftsman — a person holding the rank of noncommissioned officer in the RAF.
- airtightness — the quality of being airtight
- alarm signal — a signal warning of danger
- alcaptonuria — Alternative spelling of alkaptonuria.
- aldebaranium — (chemistry, obsolete) A rejected name for ytterbium.