19-letter words containing a, t, r, i, l
- assistant principal — a person who assists a principal in their work
- astra digital radio — (audio) Digital Radio over satellite, compatible with analog television transmissions. Alternatively the normal TV subcarriers can be modulated by a MPEG-1 Layer-2 48 kHz 192 kbps signal. Quality is better than analog carriers and only needs half the bandwidth (analog stereo = 2 carrier, digital stereo = 1 carrier). Quality is limited and the data rate can't be increased.
- atrial fibrillation — a local and uncontrollable twitching of muscle fibres that results in rapid and irregular heart and pulse rate
- 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.
- 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.
- bacillary dysentery — shigellosis.
- backward compatible — backward compatibility
- bacteriochlorophyll — a pale blue-gray form of chlorophyll that is unique to the photosynthetic but anaerobic purple bacteria.
- 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
- ballistocardiograph — an instrument that records the slight recoil of the body, while on a special bed, caused by the contractions of the heart: used to measure cardiac pumping power and the elasticity of the aorta
- 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.
- baudotbetical order — (algorithm) /baw do bet' i k*l/ Sorted into an order where numerics and special characters are intermixed by sorting a 5-bit Baudot code file ignoring the numeric shift and unshift codes.
- 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.
- betamethyl acrolein — crotonaldehyde.
- bi-lateral symmetry — a basic body plan in which the left and right sides of the organism can be divided into approximate mirror images of each other along the midline.
- bill of particulars — an itemized statement of claims or counterclaims provided to the opposing party of a lawsuit
- 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.
- 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
- blue-breasted quail — a small, brightly colored quail, Coturnix chinensis, of southern Asia and Australia, widely kept as a cage bird.
- blue-tongued lizard — a large Australian lizard, Tiliqua scincoides, characterized by having a cobalt-blue tongue.
- boat-tailed grackle — a large grackle, Quiscalus major, of the southeastern U.S., that folds its tail into a shape resembling the keel of a boat.
- briggsian logarithm — common logarithm.
- brush-tailed possum — any of several widely-distributed Australian possums of the genus Trichosurus
- building contractor — an individual or company that contracts for the construction of houses, etc
- butabarbital sodium — a barbiturate, C 10 H 15 N 2 NaO 3 , used as a sedative and hypnotic.
- cable-stayed bridge — a type of suspension bridge in which the supporting cables are connected directly to the bridge deck without the use of suspenders
- calculate a premium — If you calculate a premium, you decide how much a policyholder has to pay for insurance cover.
- canterbury pilgrims — the pilgrims whose stories are told in Chaucer's Canterbury Tales
- capital expenditure — expenditure on acquisitions of or improvements to fixed assets
- carbon steel piping — Carbon steel piping is pipes made of steel with carbon as the main alloying component, used for transporting fluids.
- cartilaginification — The formation of cartilage.
- catalytic converter — A catalytic converter is a device which is fitted to a car's exhaust to reduce the pollution coming from it.
- catalytic reforming — Catalytic reforming is a process that converts petroleum refinery naphthas to high-octane blending components.
- caterpillar tractor — a tractor powered by a Caterpillar track
- celestial hierarchy — hierarchy (def 6).
- central reservation — The central reservation is the strip of ground, often covered with grass, that separates the two sides of a major road.
- centrifugal casting — casting that utilizes centrifugal force within a spinning mold to force the metal against the walls.
- cerebral thrombosis — formation of a clot or other blockage in one of the blood vessels of the brain, often followed by neurologic damage; a type of stroke.
- chain-reacting pile — nuclear reactor
- chandrasekhar limit — the upper limit to the mass of a white dwarf, equal to 1.44 solar masses. A star having a mass above this limit will continue to collapse to form a neutron star
- chartered librarian — (in Britain) a librarian who has obtained a qualification from the Library Association in addition to a degree or diploma in librarianship
- chemical castration — the use of drugs to reduce libido
- chemical weathering — any of the various weathering processes that cause exposed rock to undergo chemical decomposition, changing the chemical and mineralogical composition of the rock: Oxygen and acids are agents in chemical weathering.
- chemolithoautotroph — (biology) A chemoautotroph or lithoautotroph.