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15-letter words containing l, r, a

  • artificial feel — a system, used in aircraft that have fully powered control surfaces, providing the pilot with simulated aerodynamic forces on the controls
  • artificial gene — a duplicate gene synthesized in the laboratory by combining nucleotides in a sequence characteristic of the copied gene.
  • artificial life — (algorithm, application)   (a-life) The study of synthetic systems which behave like natural living systems in some way. Artificial Life complements the traditional biological sciences concerned with the analysis of living organisms by attempting to create lifelike behaviours within computers and other artificial media. Artificial Life can contribute to theoretical biology by modelling forms of life other than those which exist in nature. It has applications in environmental and financial modelling and network communications. There are some interesting implementations of artificial life using strangely shaped blocks. A video, probably by the company Artificial Creatures who build insect-like robots in Cambridge, MA (USA), has several mechanical implementations of artificial life forms. See also evolutionary computing, Life.
  • artificial lift — Artificial lift is any method of increasing flow from a well.
  • artificial turf — any of various synthetic, carpetlike materials made to resemble turf and used as a playing surface for football and baseball fields, to cover patios, etc.
  • artificialness' — made by human skill; produced by humans (opposed to natural): artificial flowers.
  • artillery plant — any of various tropical urticaceous plants of the genus Pilea, such as P. microphylla, all having stamens that discharge their pollen explosively
  • asiatic cholera — cholera (def 1).
  • assemblypersons — Plural form of assemblyperson.
  • astrobiologists — Plural form of astrobiologist.
  • astronautically — In an astronautic way.
  • astrophysically — from an astrophysical point of view
  • at arm's length — If you hold something at arm's length, you hold it away from your body with your arm straight.
  • 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 full stretch — If you are at full stretch, your arm is straight and extended as far as possible, usually because you are trying to reach something that is almost too far away.
  • at right angles — If two things are at right angles, they are situated so that they form an angle of 90° where they touch each other. You can also say that one thing is at right angles to another.
  • at the controls — If someone is at the controls of a machine or other piece of equipment, they are operating it.
  • at the earliest — At the earliest means not before the date or time mentioned.
  • atherosclerosis — a degenerative disease of the arteries characterized by patchy thickening of the inner lining of the arterial walls, caused by deposits of fatty material; a form of arteriosclerosis
  • atherosclerotic — Of, pertaining to, or afflicted with atherosclerosis.
  • athlete's heart — enlargement of the heart, caused by continued, heavy physical exertion
  • athletic sports — sports, esp track and field events, in which athleticism is required
  • atlantic ridley — ridley (def 1).
  • atlantic-ridley — ridley (def 1).
  • atmospherically — pertaining to, existing in, or consisting of the atmosphere: atmospheric vapors.
  • atrabiliousness — The state or quality of being characterized by melancholy or glumness.
  • attorney-at-law — a lawyer qualified to represent in court a party to a legal action
  • auditor general — (in Canada) a federal official responsible for auditing government departments and making an annual report
  • aurora borealis — the aurora seen around the North Pole
  • australian alps — a mountain range in SE Australia, in E Victoria and SE New South Wales. Highest peak: Mount Kosciuszko, 2195 m (7316 ft)
  • australian mist — a breed of medium-sized cat with a short spotted or marbled coat
  • australian pine — casuarina
  • authoritatively — having due authority; having the sanction or weight of authority: an authoritative opinion.
  • autocorrelation — the condition occurring when successive items in a series are correlated so that their covariance is not zero and they are not independent
  • autocorrelative — Relating to autocorrelation.
  • autofluorescent — Of, pertaining to, or exhibiting autofluorescence.
  • autolithography — a lithographic technique by which the artist draws or traces with a brush and pen directly on a stone or plate.
  • automatic rifle — a type of light machine gun capable of firing automatically or in single shots.
  • automorphically — in an automorphic manner
  • autotetraploidy — the generation of the tetraploid state, created by the fusing of two nuclei from the same species
  • autotransplants — Plural form of autotransplant.
  • autotrophically — through an autotrophic process
  • auxiliary rotor — the tail rotor of a helicopter, used for directional and rotary control
  • avant la lettre — before the (specified) concept, word, person, etc. existed
  • aviator glasses — sunglasses that look like goggles
  • 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.
  • bacterial ghost — a bacterial cell that is emptied and filled artificially with another substance
  • bacteriological — Of or relating to bacteriology or bacteria.
  • baggage handler — a person who moves baggage onto and off planes at an airport
  • baggage reclaim — the process of passengers' getting back the baggage that they have checked in for a flight
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