15-letter words containing n, i, a, c
- advanced credit — credit toward a degree allowed to a student by a college for courses taken elsewhere or for high scores on preliminary examinations
- advanced higher — the highest level of qualification offered within the school system, replacing the former Certificate of Sixth Year Studies
- aerobic dancing — a system of exercises combining aerobics with dance steps and usually done to music.
- aerodynamically — the branch of mechanics that deals with the motion of air and other gases and with the effects of such motion on bodies in the medium. Compare aerostatics (def 1).
- aerodynamicists — Plural form of aerodynamicist.
- african buffalo — Cape buffalo.
- africanized bee — a hybrid of African and European honeybees, developed in Brazil and known for its disease resistance and superior honey production
- agranulocytosis — a serious and sometimes fatal illness characterized by a marked reduction of leucocytes, usually caused by hypersensitivity to certain drugs
- air conditioned — If a room or vehicle is air conditioned, the air in it is kept cool and dry by means of a special machine.
- air conditioner — An air conditioner is a machine which keeps the air in a building cool and dry.
- airborne attack — an attack involving airborne troops
- airconditioning — Alternative spelling of air conditioning.
- aircraft hangar — a large workshop or building for storing and maintaining aircraft
- airing cupboard — In British houses, an airing cupboard is a warm cupboard where you put clothes and other things that have been washed and partly dried, to make sure they are completely dry.
- airs and graces — If you refer to someone's airs and graces, you mean that they behave in a way that shows that they think they are more important than other people.
- aix-en-provence — a city and spa in SE France: the medieval capital of Provence. Pop: 145 721 (2006)
- akinetic mutism — a state of apparent alertness with normal eye movements but no speech or other voluntary motion, usually due to a stroke.
- alignment chart — nomogram.
- allegoricalness — the quality of being allegorical
- allorecognition — The ability of an individual organism to distinguish its own tissues from those of another.
- alpine accentor — a small bird of the sparrow family, Prunella collaris, found especially in mountain regions of S Europe and Asia
- alpine combined — a competition for Alpine skiers in a combination of downhill and slalom races, the winner having the highest total score.
- alsace-lorraine — an area of NE France, comprising the modern regions of Alsace and Lorraine: under German rule 1871–1919 and 1940–44. Area: 14 522 sq km (5607 sq miles)
- alta california — a former Spanish colony of New Spain, in the modern-day states of California, Nevada, and N Arizona: ceded by Mexico to the United States 1848.
- aluminosilicate — a silicate in which some of the silicon in the tetrahedral unit SiO4 has been replaced by aluminium
- ambrosian chant — the liturgical chant, established by Saint Ambrose, characterized by ornamented, often antiphonal, singing.
- ambulance train — a train designed to carry sick or injured people
- amenity society — a voluntary society established with the purpose of preserving historic art and architecture
- american beauty — a variety of hybrid, perennial red rose
- american blight — any plant louse of the family Aphididae, characterized by a waxy secretion that appears like a jumbled mass of fine, curly, white cottony or woolly threads, as Eriosoma lanigerum (woolly apple aphid or American blight) and Prociphilus tessellatus (woolly alder aphid)
- american cheese — a type of smooth hard white or yellow cheese similar to a mild Cheddar
- american copper — a malleable, ductile, metallic element having a characteristic reddish-brown color: used in large quantities as an electrical conductor and in the manufacture of alloys, as brass and bronze. Symbol: Cu; atomic weight: 63.54; atomic number: 29; specific gravity: 8.92 at 20°C.
- american cotton — upland cotton.
- american empire — a style of American furniture making and related crafts from c1815 to c1840, corresponding to the French Empire and late English Regency styles.
- american gothic — a painting (1930) by Grant Wood.
- american indian — American Indian people or things belong to or come from one of the native peoples of America.
- american ipecac — a plant, Gillenia stipulata, of the rose family, of the eastern coast of the U.S., having white flowers on long stalks.
- american league — one of the two major professional U.S. baseball leagues, established in 1900. Abbreviation: A.L.
- american legion — an association of former member of the US armed forces
- american linden — any tree of the genus Tilia, as T. americana (American linden) or T. europaea (European linden) having fragrant yellowish-white flowers and heart-shaped leaves, grown as an ornamental or shade tree. Compare linden family.
- american marten — pine marten (def 2).
- american smooth — a style of competitive ballroom dancing which incorporates elements of Latin dance
- american wigeon — a bird of North America, Anas americana, that is similar to the wigeon; the male has a white crown
- americanization — Americanization is the process by which people or countries become more and more similar to Americans and the United States.
- americanologist — a foreign expert or specialist in American cultural or political matters: a leading Americanologist in the Kremlin.
- amicable number — either of a pair of positive integers in which each member is equal to the sum of the submultiples of the other, as 220 and 284.
- aminoglycosides — Plural form of aminoglycoside.
- ammunition clip — a device for storing rounds of ammunition and feeding them into a weapon
- anacoluthically — in an anacoluthic manner
- anacostia river — a river in the District of Columbia flowing into the Potomac River. about 24 miles (39 km) long.