15-letter words containing ar
- asymmetric bars — a pair of wooden or fibreglass bars placed parallel to each other but set at different heights, for various exercises
- at arm's length — If you hold something at arm's length, you hold it away from your body with your arm straight.
- at the earliest — At the earliest means not before the date or time mentioned.
- athlete's heart — enlargement of the heart, caused by continued, heavy physical exertion
- augustus caesar — Also called Octavian (before 27 b.c.)(Gaius Julius Caesar Octavianus; Augustus Caesar) 63 b.c.–a.d. 14, first Roman emperor 27 b.c.–a.d. 14: reformer, patron of arts and literature; heir and successor to Julius Caesar.
- austria-hungary — the Dual Monarchy established in 1867, consisting of what are now Austria, Hungary, the Czech Republic, Slovakia, Slovenia, Croatia, and Bosnia-Herzegovina, and parts of Poland, Romania, Ukraine, and Italy. The empire was broken up after World War I
- auxiliary rotor — the tail rotor of a helicopter, used for directional and rotary control
- azerty keyboard — a common European version of typewriter keyboard layout with the characters a, z, e, r, t, and y positioned on the top row of alphabetic characters at the left side of the keyboard
- backup software — (tool, software) Software for doing a backup, often included as part of the operating system. Backup software should provide ways to specify what files get backed up and to where. It may include its own scheduling function to automate the procedure or, preferably, work with generic scheduling facilities. It may include facilities for managing the backup media (e.g. maintaining an index of tapes) and for restoring files from backups. Examples are Unix's dump command and Windows's ntbackup.
- balloon barrage — a series of moored balloons, usually strung together and hung with cables, for impeding a low-level attack by enemy aircraft.
- ballpark figure — approximate number
- bar examination — a written examination to determine if one is qualified to practice law in a particular jurisdiction.
- bar-code reader — an electronic machine that scans and reads bar codes
- barberry family — the plant family Berberidaceae, characterized by shrubs and herbaceous plants having very varied leaves and flowers and fruit in the form of a berry or capsule, and including the barberry, May apple, and Oregon grape.
- barbituric acid — a white crystalline solid used in the preparation of barbiturate drugs. Formula: C4H4N2O3
- barbizon school — a group of French painters of landscapes of the 1840s, including Théodore Rousseau, Daubigny, Diaz, Corot, and Millet
- barcelona chair — an armless, padded leather chair on a steel frame shaped like a curved X: Barcelona is a trademark for this chair
- bare infinitive — an infinitive verb form without to, used with certain auxiliary verbs , as in I must go. All I did was ask. We might win.
- barefoot doctor — (esp in developing countries) a worker trained as a medical auxiliary in a rural area who dispenses medicine, gives first aid, assists at childbirth, etc
- bargain counter — a store counter on which goods are displayed for sale at reduced prices
- bargain-hunting — the act of shopping for items sold at cheap, esp discounted, prices
- bargaining chip — In negotiations with other people, a bargaining chip is something that you are prepared to give up in order to obtain what you want.
- bargaining unit — a specific group of employees who are covered by the same collective agreement or set of agreements and represented by the same bargaining agent or agents
- barium chloride — a poisonous compound, BaCl2, consisting of flat white crystals that are soluble in water: it is used to treat water, metals, leather, etc.
- barium chromate — a yellow, crystalline compound, BaCrO 4 , used as a pigment (barium yellow)
- barium peroxide — a gray-white powder, BaO2, used as a bleach and in making hydrogen peroxide
- barium stearate — a white, crystalline, water-insoluble solid, Ba(C 18 H 35 O 2) 2 , used chiefly as a waterproofing agent and as a lubricant.
- barium sulphate — a white insoluble fine dense powder, used as a pigment, as a filler for paper, rubber, etc, and in barium meals. Formula: BaSO4
- barium titanate — a crystalline ceramic used in capacitors and piezoelectric devices. Formula: BaTiO3
- 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
- barn-door skate — an Atlantic skate, Raja laevis, that grows to a length of 4 feet (1.2 meters) or more.
- barothermograph — an automatic instrument for recording pressure and temperature.
- barracks lawyer — a member of the armed forces who speaks or acts like an authority on military law, regulations, and the rights of service personnel.
- barrage balloon — Barrage balloons are large balloons which are fixed to the ground by strong steel cables. They are used in wartime, when the cables are intended to destroy low-flying enemy aircraft.
- barrancabermeja — a city in N Colombia.
- barry mountains — a mountain range in SE Australia, in E Victoria: part of the Australian Alps
- barycentrically — In a barycentric manner.
- battery charger — a device that can restore the charge to a battery, usually by means of electricity
- battery farming — the activity of using batteries for raising poultry
- battle hardened — toughened by the experience of battle
- be carried away — to be moved to great or unreasoning emotion or enthusiasm
- be raring to go — If you say that you are raring to go, you mean that you are very eager to start doing something.
- bear animalcule — tardigrade (def 3).
- bear comparison — to be sufficiently similar in class or range to be compared with (something else), esp favourably
- bearded vulture — lammergeier
- béarnaise sauce — a creamy sauce, esp. for meat or fish, made of butter and egg yolks and flavored with wine, vinegar, shallots, and herbs
- benedict arnold — Benedict, 1741–1801, American general in the Revolutionary War who became a traitor.
- beside the mark — not striking the point aimed at
- billiard parlor — poolroom (def 1).