19-letter words containing a, r, n, t
- at one's fingertips — readily available and within one's mental grasp
- at your convenience — at a time suitable to you
- atherton technology — (company) The comapny that developed the Software BackPlane CASE framework. Their Atherton Tool Integration Services were the basis for the ATIS standard.
- atmospheric braking — a technique of reentry in which the vehicle is maneuvered in the upper atmosphere so as to lose velocity by utilizing drag without overheating.
- atrial fibrillation — a local and uncontrollable twitching of muscle fibres that results in rapid and irregular heart and pulse rate
- attachment disorder — an emotional and behavioral disorder arising from a failure to form a strong bond with one’s primary caregiver in early childhood and affecting one’s social relationships in later childhood and adulthood. See also attachment (def 3a).
- attendance register — an official list of people who are present at an institution such as a school
- attractive nuisance — Law. a doctrine of tort law under which a person who creates or permits to exist on his or her land a dangerous condition attractive to children, as an unfenced swimming pool, is liable for their resulting injuries, even though the injured are trespassers.
- audio response unit — a device that enables a computer to give a spoken response by generating sounds similar to human speech.
- auriculoventricular — atrioventricular.
- australian fan palm — a fan palm, Livistona australis, of Australia, having a slender, reddish-brown trunk, spiny leafstalks, and round fruit.
- australian tea tree — a shrubby Australian tree, Leptospermum laevigatum, of the myrtle family, having lance-shaped leaves and white, bell-shaped flowers.
- austro-prussian war — the war (1866) in which Prussia, Italy, and some minor German states opposed Austria, Saxony, Hanover, and the states of southern Germany.
- author's alteration — a correction or change made in typeset copy that is not a correction of an error introduced by the compositor. Abbreviation: AA, A.A., a.a., aa.
- autotransplantation — autograft.
- avogadro's constant — the number of atoms or molecules in a mole of a substance, equal to 6.022 52 × 1023
- bacillary dysentery — shigellosis.
- balfour declaration — the statement made by Arthur Balfour in 1917 of British support for the setting up of a national home for the Jews in Palestine, provided that the rights of "existing non-Jewish communities" in Palestine could be safeguarded
- banff national park — a national reserve, 2585 sq. mi. (6695 sq. km), in the Rocky Mountains, in SW Alberta, Canada.
- bank reconciliation — A bank reconciliation is the process of adjusting a bank statement to show transactions that have occurred since the date of issue, or a document showing this.
- banker's acceptance — a draft or bill of exchange drawn on a bank and accepted by it
- bankruptcy petition — an official request for protection under bankruptcy laws, which initiates bankruptcy proceedings
- bargaining position — the position of a person, group, or organization in a negotiation, with respect to their ability to achieve a deal which is favourable to themselves
- barometric gradient — pressure gradient
- batterie de cuisine — cooking utensils collectively; pots and pans, etc
- battle-ground state — a state of the U.S. in which the Democratic and Republican candidates both have a good chance of winning and that is considered key to the outcome of a presidential election: the swing states of Ohio and Indiana.
- battles of bull run — two battles fought at Manassas Junction near a stream named Bull Run, during the American Civil War (July, 1861 and August, 1862), in both of which the Federal army was routed by the Confederates
- be burnt to a crisp — If something is burnt to a crisp, it is completely burnt.
- be one's own master — If you say that you are your own master, you mean that your decisions are not controlled by other people and you are free to do what you want.
- beauty preparations — the cosmetics, creams etc used to improve someone's beauty
- behavioral genetics — an interdisciplinary field studying the effects of genetics and hereditary factors on animal and human behavior.
- belgian east africa — a former Belgian trust territory in Africa, also (1924–62) Ruanda-Urundi, now the independent countries of Rwanda and Burundi.
- benefit performance — a theatrical or musical performance in aid of charity
- beta-naphthyl group — See under naphthyl.
- betamethyl acrolein — crotonaldehyde.
- bicarbonate of soda — Bicarbonate of soda is a white powder which is used in baking to make cakes rise, and also as a medicine for your stomach.
- binary large object — (database) (BLOB) A large block of data stored in a database, such as an image or sound file. A BLOB has no structure which can be interpreted by the database management system but is known only by its size and location.
- binding arbitration — dispute resolution
- binocular disparity — the small differences in the positions of the parts of the images falling on each eye that results when each eye views the scene from a slightly different position; these differences make stereoscopic vision possible
- binomial experiment — an experiment consisting of a fixed number of independent trials each with two possible outcomes, success and failure, and the same probability of success. The probability of a given number of successes is described by a binominal distribution
- black carpenter ant — a large, black ant, Camponotus pennsylvanicus, that lives in damp wood in nature or in houses, where it can cause considerable damage by boring or tunneling.
- blue-tongued lizard — a large Australian lizard, Tiliqua scincoides, characterized by having a cobalt-blue tongue.
- board certification — the process of certifying that a physician has passed an examination and met the standards of a professional organization representing a particular medical specialty.
- board of trade unit — a unit of electrical energy equal to 1 kilowatt-hour
- booker t washington — Booker T(aliaferro) [boo k-er tol-uh-ver] /ˈbʊk ər ˈtɒl ə vər/ (Show IPA), 1856–1915, U.S. reformer, educator, author, and lecturer.
- bracket abstraction — (compiler) An algorithm which turns a term into a function of some variable. The result of using bracket abstraction on T with respect to variable v, written as [v]T, is a term containing no occurrences of v and denoting a function f such that f v = T. This defines the function f = (\ v . T). Using bracket abstraction and currying we can define a language without bound variables in which the only operation is monadic function application. See combinator.
- brand contamination — the process by which the reputation of a particular brand or product becomes tarnished by adverse publicity
- breathing apparatus — an apparatus, usually consisting of tanks of air or oxygen and a mouthpiece, that enables the wearer to breath in difficult conditions such as a smoke-filled building
- briggsian logarithm — common logarithm.
- bug tracking system — (programming) (BTS) A system for receiving and filing bugs reported against a software project, and tracking those bugs until they are fixed. Most major software projects have their own BTS, the source code of which is often available for use by other projects. Well known BTSs include GNATS, Bugzilla, and Debbugs.