18-letter words containing r, a
- attention-grabbing — An attention-grabbing remark or activity is one that is intended to make people notice it.
- attribution theory — the theory that tries to explain how people link actions and emotions to particular causes, both internal and external
- audio conferencing — the practice of conducting meetings by the use of audio telecommunications
- auditory phonetics — the branch of phonetics concerned with the perception of speech sounds by humans
- augmented interval — an interval that is a half step greater than the corresponding major or perfect interval
- australian doubles — an unusual formation in doubles in which the server's partner is positioned on the same side of the court as the server.
- australian terrier — a small wire-haired breed of terrier similar to the cairn
- australopithecines — Plural form of australopithecine.
- authorized capital — the total amount of value of the shares that a company is allowed to distribute
- authorized version — the revised English translation of the Bible published in England in 1611 with the authorization of King James I
- autobiographically — In a autobiographical manner.
- autogenic training — a technique for reducing stress through mental exercises to produce physical relaxation
- automatic exposure — the automatic adjustment of the lens aperture and shutter speed of a camera by a control mechanism
- automatic tracking — a radar tracking system in which an automatic device uses the echo signal from the tracked object to keep the radar constantly beamed on target and to compute the range of the object.
- auxiliary equation — characteristic equation (def 1b).
- auxiliary language — a language, as Esperanto, Swahili, or English, used for intercommunication by speakers of various other languages.
- auxiliary-equation — Mathematics. the characteristic polynomial of a given matrix, equated to zero. Also called auxiliary equation. an equation with one variable and equated to zero, which is derived from a given linear differential equation and in which the coefficient and power of the variable in each term correspond to the coefficient and order of a derivative in the original equation.
- aviation authority — a body that is responsible for overseeing the aviation industry
- aviation insurance — Aviation insurance is insurance cover for aircraft, and for damage, injury, or loss of life or cargo while traveling on aircraft.
- avoirdupois weight — a British and American system of weights based on a pound of 16 ounces
- awnless bromegrass — Hungarian bromegrass.
- axis of revolution — an axis in a plane, about which an area is revolved to form a solid of revolution.
- bach flower remedy — an alternative medicine consisting of a distillation from various flowers, designed to counteract negative states of mind and restore emotional balance
- bachelor apartment — a flat consisting of one room that is used as a sitting room and bedroom, as well as a kitchenette and a bathroom
- bachelor's-buttons — any of various plants of the daisy family with button-like flower heads
- bachelorette party — A bachelorette party is a party for a woman who is getting married very soon, to which only women are invited.
- back end generator — (tool) (BEG) A code generator developed by H. Emmelmann et al at GMD, University Karlsruhe, Germany. Its input language is Back End Generator Language (BEGL).
- back to square one — If you are back to square one, you have to start dealing with something from the beginning again because the way you were dealing with it has failed.
- back/down to earth — If you come down to earth or back to earth, you have to face the reality of everyday life after a period of great excitement.
- background reading — reading of related works in order to get contextual information on a topic that you are intending to study or write about
- backus normal form — Backus-Naur Form
- balanced scorecard — A balanced scorecard is a type of management report which includes both financial and non-financial measures.
- ballistocardiogram — a tracing made by a ballistocardiograph
- banded rattlesnake — timber rattlesnake.
- banker's reference — a confidential statement about the financial status of a customer, provided by one bank to another, or to an authorized enquirer
- bankers-acceptance — a draft or bill of exchange that a bank has accepted. Abbreviation: BA. Also called banker's acceptance. Compare acceptance (def 6).
- barbershop quartet — a group of four singers who perform a style of music sung in four-part harmony
- bargaining counter — A bargaining counter is the same as a bargaining chip.
- baritone saxophone — the second lowest instrument in the family of saxophones
- barium thiosulfate — a white, crystalline, water-insoluble, poisonous solid, BaS 2 O 3 ⋅H 2 O, used chiefly in the manufacture of explosives, matches, paints, and varnishes.
- barrow's goldeneye — See under goldeneye (def 1).
- bartholin's glands — two small reddish-yellow glands, one on each side of the vaginal orifice, that secrete a mucous lubricating substance during sexual stimulation in females
- basal conglomerate — a conglomerate deposited on an erosion surface and constituting the bottom layer of a stratigraphic series.
- basement apartment — an apartment below the ground floor of a building
- basket-handle arch — an arch having a symmetrical form drawn from an odd number of radii in excess of one, which increase in length from the springing toward the center.
- bats-in-the-belfry — a hairy Eurasian campanulaceous plant, Campanula trachelium, with bell-shaped blue-purple flowers
- battery eliminator — eliminator (def 2).
- battery-eliminator — a person or thing that eliminates.
- battle of clontarf — a battle fought in 1014, near Dublin, in the Republic of Ireland, in which the Danes were defeated by the Irish but the Irish king, Brian Boru, was killed
- battle of omdurman — a battle (1898) in which the Mahdi's successor and his Ansar followers were defeated by Lord Kitchener's British forces