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16-letter words containing a, c, t, i

  • assisted suicide — suicide committed with the assistance of a physician by a person terminally ill or in unmanageable pain
  • associate degree — An associate degree is a college degree that is awarded to a student who has completed a two-year course of study.
  • associate member — a person who is a member of a club, organization etc. but has only partial rights and privileges or subordinate status
  • associated state — a nation with limited sovereignty, especially a former colony that now assumes responsibility for domestic affairs but continues to depend on the colonial ruler for defense and foreign policy.
  • association area — any of the regions of the cerebral cortex of the brain connected by numerous nerve fibers to all parts of both cerebral hemispheres and coordinating such higher activities as learning and reasoning.
  • associationistic — Of or pertaining to associationism.
  • asymptomatically — showing no evidence of disease.
  • athanasian creed — a profession of faith widely used in the Western Church which, although formerly attributed to Athanasius, probably originated in Gaul between 381 and 428 ad
  • atherothrombotic — (medicine) Pertaining to or caused by atherothrombosis, the sudden disruption of an atherosclerotic plaque.
  • atlantic charter — the joint declaration issued by F. D. Roosevelt and Winston Churchill on Aug 14, 1941, consisting of eight principles to guide a postwar settlement
  • atlantic croaker — a person or thing that croaks.
  • atmospheric tide — a movement of atmospheric masses caused by the gravitational attraction of the sun and moon and by daily solar heating.
  • atomic mass unit — a unit of mass used to express atomic and molecular weights that is equal to one twelfth of the mass of an atom of carbon-12. It is equivalent to 1.66 × 10–27 kg
  • atomic physicist — a scientist specializing in atomic physics
  • atomic structure — the concept of an atom as a central positively charged nucleus consisting of protons and neutrons surrounded by a number of electrons. The number of electrons is equal to the number of protons: the whole entity is thus electrically neutral
  • atrioventricular — of, relating to, or affecting both the atria and the ventricles of the heart
  • attorney-in-fact — a person authorized by power of attorney to act on the authorizer's behalf outside a court of law.
  • atwood's machine — a device consisting of two unequal masses connected by a string passed over a pulley, used to illustrate the laws of motion.
  • auction pinochle — a variety of pinochle for three to five players in which, for every hand, there are three active players, each dealt 15 cards, with the highest bidder winning the contract and playing against the other two active opponents.
  • auditory vesicle — the pouch that is formed by the invagination of an ectodermal placode and that develops into the internal ear.
  • australian crawl — a stroke in which the feet are kicked like paddles while the arms reach forward and pull back through the water
  • australopithecus — an extinct genus of small-brained,large-toothed bipedal hominids that lived in Africa between one and four million years ago.
  • authentification — The process of making, or establishing as, authentic.
  • autobiographical — An autobiographical piece of writing relates to events in the life of the person who has written it.
  • autodidactically — a person who has learned a subject without the benefit of a teacher or formal education; a self-taught person.
  • autoethnographic — Using ethnographic techniques to describe one's own life, or events in which one is a participant.
  • autointoxication — self-poisoning caused by absorption of toxic products originating within the body
  • automatic camera — a camera in which the lens aperture or the shutter speed or both are automatically adjusted to the prevailing conditions
  • automatic pistol — a type of pistol having a mechanism that throws out the empty shell, puts in a new one, and prepares the pistol to be fired again.
  • automatic redial — a telephone service feature whereby the last number dialed is automatically called again, either after a specified time or when activated by the user.
  • automatic repeat — a key on the keyboard of a typewriter, computer, etc, which, when depressed continuously, produces the character repeatedly until the key is released
  • automatrix, inc. — (company)   The company which produced CAM-PC. Address: Ballston Spa, NY, USA.
  • autoradiographic — Of or pertaining to an autoradiograph, a radiographic image produced by the decay of a radioactive substance.
  • autostereoscopic — Of or pertaining to autostereoscopy.
  • axminster carpet — a type of patterned carpet with a cut pile
  • back-propagation — (Or "backpropagation") A learning algorithm for modifying a feed-forward neural network which minimises a continuous "error function" or "objective function." Back-propagation is a "gradient descent" method of training in that it uses gradient information to modify the network weights to decrease the value of the error function on subsequent tests of the inputs. Other gradient-based methods from numerical analysis can be used to train networks more efficiently. Back-propagation makes use of a mathematical trick when the network is simulated on a digital computer, yielding in just two traversals of the network (once forward, and once back) both the difference between the desired and actual output, and the derivatives of this difference with respect to the connection weights.
  • back-seat driver — If you refer to a passenger in a car as a back-seat driver, they annoy you because they constantly give you advice.
  • bacterial canker — a disease of plants, characterized by cankers and usually by exudation of gum, caused by bacteria, as of the genera Pseudomonas and Corynebacterium.
  • bacterioplankton — (biology) The bacterial component of marine plankton.
  • badminton racket — the type of racket used in games of badminton
  • ballistic camera — a camera for tracking missiles launched at night.
  • baltimore canyon — a submarine valley cut into the continental shelf and slope seaward of Chesapeake Bay.
  • bare necessities — only the essentials
  • barium carbonate — a white, poisonous, water-insoluble powder, BaCO 3 , used chiefly in the manufacture of rodenticides, paints, and dyes.
  • barometric error — error of a timepiece due to the fluctuations in density of the atmosphere through which the balance or pendulum moves.
  • basic dichromate — an orange-red, amorphous, water-insoluble powder, Bi 2 O 3 ⋅2CrO 3 , used chiefly as a pigment in paints.
  • bastard culverin — a 16th-century cannon, smaller than a culverin, firing a shot of between 5 and 8 pounds (11 and 17.6 kg).
  • batch processing — manufacturing products or treating materials in batches, by passing the output of one process to subsequent processes
  • batch production — production of goods in batches, rather than continuously
  • batesian mimicry — mimicry in which a harmless species is protected from predators by means of its resemblance to a harmful or inedible species
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