15-letter words containing a, r, c, n, i, s
- arabic numerals — the figures 1, 2, 3, 4, 5, 6, 7, 8, 9, and the 0 (zero) that originated in India; Hindu-Arabic numerals
- archaeobotanist — A person engaged in archaeobotany.
- arms inspection — the official checking of a country's weapons and other military equipment, usually to check that international agreements have been respected
- artificialness' — made by human skill; produced by humans (opposed to natural): artificial flowers.
- astrodynamicist — a person who studies astrodynamics
- astronautically — In an astronautic way.
- at first glance — If you say that something is true or seems to be true at first glance, you mean that it seems to be true when you first see it or think about it, but that your first impression may be wrong.
- at short notice — Notice is used in expressions such as 'at short notice', 'at a moment's notice' or 'at twenty-four hours' notice', to indicate that something can or must be done within a short period of time.
- back plastering — the introduction of partitions of lath and plaster between the inner and outer surfaces of a stud wall in order to improve the insulating properties of the wall.
- back-scratching — a reciprocal exchange of favors, aid, or compliments
- barbizon school — a group of French painters of landscapes of the 1840s, including Théodore Rousseau, Daubigny, Diaz, Corot, and Millet
- barley sandwich — a drink of beer, esp at lunch time
- barn conversion — the adaptation of a farm barn into a building serving a different use, such as a house or commercial premises
- basic anhydride — a compound formed by removing water from a more complex compound: an oxide of a nonmetal (acid anhydride) or a metal (basic anhydride) that forms an acid or a base, respectively, when united with water.
- bear comparison — to be sufficiently similar in class or range to be compared with (something else), esp favourably
- béarnaise sauce — a creamy sauce, esp. for meat or fish, made of butter and egg yolks and flavored with wine, vinegar, shallots, and herbs
- berenice's hair — the constellation Coma Berenices
- beta conversion — (theory) A term from lambda-calculus for beta reduction or beta abstraction.
- big sandy creek — a river in central Colorado, flowing NE and SE to the Arkansas River near Lamar: site of the 1864 Sand Creek Massacre. 200 miles (322 km) long.
- bioastronautics — the study of the effects of space flight on living organisms
- boa constrictor — A boa constrictor is a large snake that kills animals by wrapping itself round their bodies and squeezing them to death. Boa constrictors are found mainly in South and Central America and the West Indies.
- boarding school — A boarding school is a school which some or all of the pupils live in during the school term. Compare day school.
- borderline case — a person or thing that is not clearly classifiable as something
- brachistochrone — the curve between two points through which a body moves under the force of gravity in a shorter time than for any other curve; the path of quickest descent
- branching rules — rules that are used to break down a complex problem into several smaller problems
- branchiostegous — branchiostegal.
- breathing space — A breathing space is a short period of time between two activities in which you can recover from the first activity and prepare for the second one.
- bristol channel — an inlet of the Atlantic, between S Wales and SW England, merging into the Severn estuary. Length: about 137 km (85 miles)
- bronchial tubes — the bronchi or their smaller divisions
- buckinghamshire — a county in SE central England, containing the Vale of Aylesbury and parts of the Chiltern Hills: the geographic and ceremonial county includes Milton Keynes, which became an independent unitary authority in 1997. Administrative centre: Aylesbury. Pop (excluding Milton Keynes): 478 000 (2003 est). Area (excluding Milton Keynes): 1568 sq km (605 sq miles)
- cabinet scraper — a scraper used in preparing a wood surface for sanding.
- cactus geranium — a plant, Pelargonium echinatum, of the geranium family, native to southern Africa, having prickly stipules and white or reddish flowers.
- caernarvonshire — (until 1974) a county of NW Wales, now part of Gwynedd
- cairngorm-stone — smoky quartz.
- california rose — a cultivated variety of a bindweed, Calystegia hederacea, having showy, double, rose-colored flowers.
- calliper splint — a splint consisting of two metal rods with straps attached, for supporting or exerting tension on the leg
- canadian forces — the official name for the military forces of Canada
- canisterization — the process of putting (something) into a canister or canisters
- cape finisterre — a headland in NW Spain: the westernmost point of the Spanish mainland
- captain's chair — a hardwood armchair having a low, curved back, formed of a single rail supported by spindles, and a saddle seat
- carcinosarcomas — Plural form of carcinosarcoma.
- cardinal points — the four main points of the compass: north, south, east, and west
- cardinal spider — a large house spider, Tegenaria parietina
- cardinal system — a system of coding navigational aids by shape, color, and number, according to their positions relative to navigational hazards.
- cardinal vowels — a set of theoretical vowel sounds, based on the shape of the mouth needed to articulate them, that can be used to classify the vowel sounds of any speaker in any language
- carmarthenshire — a county of S Wales, formerly part of Dyfed (1974–96): on Carmarthen Bay, with the Cambrian Mountains in the N: generally agricultural (esp dairying). Administrative centre: Carmarthen. Pop: 176 000 (2003 est). Area: 2398 sq km (926 sq miles)
- carnivorousness — flesh-eating: A dog is a carnivorous animal.
- carpentersville — a city in NE Illinois, near Chicago.
- carrier scanner — (security) (Or "wardialer") A program which uses a modem to dial a series of phone numbers (say, from 770-0000 to 770-9999), and keeps a log of what phone numbers answer with a modem carrier. The results of such a search were generally used by people looking to engage in random mischief in random machines. Since the 1980s, wardialers have generally fallen into disuse, partly because of easily available "caller ID" technology, partly because fax machines are now in wide use and would often be logged as a carrier by a wardialer, and partly because there are so many new and more interesting venues for computerised mischief these days.
- cartesian diver — a glass vessel partially filled with water and covered with an airtight membrane, containing a hollow object that is open at the bottom and contains just enough air to allow it to float. Pressing on the membrane compresses the air in the vessel and forces water into the object, causing it to sink; releasing the membrane causes it to rise.