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18-letter words containing t, a, h, g

  • chromolithographic — Pertaining to, or made by, chromolithography.
  • chronostratigraphy — The branch of geology concerned with establishing the absolute ages of strata.
  • circular breathing — a technique for sustaining a phrase on a wind instrument, using the cheeks to force air out of the mouth while breathing in through the nose
  • clinical pathology — the branch of pathology dealing with the study of disease and disease processes by means of chemical, microscopic, and serologic examinations.
  • clothing allowance — an amount of money to compensate for the purchase of clothes for work, school, etc
  • collection charges — the charges levied to cover expenses for the collection of debt
  • colour photography — the art or process of taking and developing photographs in colour
  • commodity exchange — an exchange where commodities are traded
  • commonwealth games — an event held every four years in which sportspeople from the countries of the Commonwealth compete
  • congregate housing — a type of housing in which each individual or family has a private bedroom or living quarters but shares with other residents a common dining room, recreational room, or other facilities.
  • connected subgraph — (mathematics)   A connected graph consisting of a subset of the nodes and edges of some other graph.
  • crested wheatgrass — a forage grass, Agropyron cristatum, native to Eurasia and grown in the Great Plains as pasturage, hay, and for erosion control.
  • deadweight tonnage — the capacity in long tons of cargo, passengers, fuel, stores, etc. (deadweight tons) of a vessel: the difference between the loaded and light displacement tonnage of the vessel.
  • demorgan's theorem — (logic)   A logical theorem which states that the complement of a conjunction is the disjunction of the complements or vice versa. In symbols: not (x and y) = (not x) or (not y) not (x or y) = (not x) and (not y) E.g. if it is not the case that I am tall and thin then I am either short or fat (or both). The theorem can be extended to combinations of more than two terms in the obvious way. The same laws also apply to sets, replacing logical complement with set complement, conjunction ("and") with set intersection, and disjunction ("or") with set union. A (C) programmer might use this to re-write if (!foo && !bar) ... as if (!(foo || bar)) ... thus saving one operator application (though an optimising compiler should do the same, leaving the programmer free to use whichever form seemed clearest).
  • dermot macmurrough — ?1110–71, king of Leinster, who, by enlisting the support of the English to win back his kingdom, was responsible for the English conquest of Ireland
  • determinate growth — growth of a plant stem that is terminated early by the formation of a bud
  • dielectric heating — the heating of a nonconducting substance caused by dielectric loss when the material is placed in a variable electric field.
  • digital humanities — (used with a singular verb) the study of literature, philosophy, etc., as facilitated by computer technology or digital media: Digital humanities uses data analysis to find patterns in large bodies of text. the set of methodologies used in such scholarship.
  • digital switchover — the process of changing the method of transmitting television from analogue to digital format
  • digital technology — the branch of scientific or engineering knowledge that deals with the creation and practical use of digital or computerized devices, methods, systems, etc.: advances in digital technology.
  • diphosphoglycerate — an ester of phosphoric acid and glyceric acid that occurs in the blood and that promotes the release of hemoglobin-bound oxygen.
  • discharge printing — a fabric-printing method in which the material is dyed and then certain areas are discharged so as to permit the original hue or its color replacement to act as a pattern against the colored ground.
  • distinguishability — to mark off as different (often followed by from or by): He was distinguished from the other boys by his height.
  • division algorithm — the theorem that an integer can be written as the sum of the product of two integers, one a given positive integer, added to a positive integer smaller than the given positive integer. Compare Euclidean algorithm.
  • do not give a hoot — If you say that you don't give a hoot or don't care two hoots about something, you are emphasizing that you do not care at all about it.
  • drinking chocolate — sweetened cocoa powder
  • drug on the market — Pharmacology. a chemical substance used in the treatment, cure, prevention, or diagnosis of disease or used to otherwise enhance physical or mental well-being.
  • electric discharge — electricity emitted
  • electrocardiograph — A machine used for electrocardiography.
  • electrophotography — Any of several methods of photocopying in which an image is created and then transferred between surfaces using static electricity.
  • ethnomusicological — Relating to or pertaining to ethnomusicology.
  • ethnopsychological — Relating to ethnopsychology.
  • euclid's algorithm — (algorithm)   (Or "Euclidean Algorithm") An algorithm for finding the greatest common divisor (GCD) of two numbers. It relies on the identity gcd(a, b) = gcd(a-b, b) To find the GCD of two numbers by this algorithm, repeatedly replace the larger by subtracting the smaller from it until the two numbers are equal. E.g. 132, 168 -> 132, 36 -> 96, 36 -> 60, 36 -> 24, 36 -> 24, 12 -> 12, 12 so the GCD of 132 and 168 is 12. This algorithm requires only subtraction and comparison operations but can take a number of steps proportional to the difference between the initial numbers (e.g. gcd(1, 1001) will take 1000 steps).
  • exhaustive testing — (programming)   Executing a program with all possible combinations of inputs or values for program variables.
  • fall to the ground — (of a plan, theory, etc) to be rendered invalid, esp because of lack of necessary information
  • farm the long acre — to graze cows on the verge of a road
  • fight to the death — If you say that you will fight to the death for something, you are emphasizing that you will do anything to achieve or protect it, even if you suffer as a consequence.
  • flash butt welding — a method of welding metal edge-to-edge with a powerful electric flash followed by the application of pressure.
  • foundling hospital — an institutional home for foundlings.
  • fracture toughness — The fracture toughness of a material is how likely it is to resist fracture.
  • gas chromatography — a chromatograph used for the separation of volatile substances.
  • gas-discharge tube — any tube in which an electric discharge takes place through a gas
  • general anesthesia — induced unconsciousness
  • genetic algorithms — genetic algorithm
  • gestalt psychology — (sometimes lowercase) the theory or doctrine that physiological or psychological phenomena do not occur through the summation of individual elements, as reflexes or sensations, but through gestalts functioning separately or interrelatedly.
  • get out of the way — move aside
  • get the upper hand — gain advantage
  • giant peacock moth — the largest European moth, an emperor, Saturnia pyri, reaching 15 cm (6 in.) in wingspan. It is mottled brown with a prominent ocellus on each wing and being night-flying can be mistaken for a bat
  • give sb their head — If you give someone their head, you allow them to do what they want to do, without trying to advise or stop them.
  • give the game away — to reveal one's intentions or a secret
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