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单词 transformation
释义

WordReference Random House Unabridged Dictionary of American English © 2024
trans•for•ma•tion  (trans′fər māshən),USA pronunciation n. 
  1. the act or process of transforming.
  2. the state of being transformed.
  3. change in form, appearance, nature, or character.
  4. [Theat.]a seemingly miraculous change in the appearance of scenery or actors in view of the audience.
  5. [Logic.]Also called transform. one of a set of algebraic formulas used to express the relations between elements, sets, etc., that form parts of a given system.
  6. [Math.]
    • the act, process, or result of transforming or mapping.
    • function (def. 4a).
  7. [Ling.]
    • See transformational rule.
    • the process by which deep structures are converted into surface structures using transformational rules.
  8. Microbiology[Genetics.]the transfer of genetic material from one cell to another resulting in a genetic change in the recipient cell.
  9. a wig or hairpiece for a woman.
  • Late Latin trānsfōrmātiōn- (stem of trānsfōrmātiō) change of shape. See trans-, formation
  • late Middle English 1400–50
trans′for•ma tion•al, adj. 

Collins Concise English Dictionary © HarperCollins Publishers::
transformation /ˌtrænsfəˈmeɪʃən/ n
  1. a change or alteration, esp a radical one
  2. the act of transforming or the state of being transformed
  3. a change in position or direction of the reference axes in a coordinate system without an alteration in their relative angle
  4. an equivalent change in an expression or equation resulting from the substitution of one set of variables by another
  5. a change in an atomic nucleus to a different nuclide as the result of the emission of either an alpha-particle or a beta-particle
  6. another word for transformational rule
  7. an apparently miraculous change in the appearance of a stage set

ˌtransforˈmational adj
WordReference Random House Learner's Dictionary of American English © 2024
trans•form /v. trænsˈfɔrm; n. ˈtrænsfɔrm/USA pronunciation   v. [+ object (+ into/to + object)]
  1. to change in form:transformed his drab office into a cheery workspace.
  2. to change in condition or character;
    convert:to transform sunlight into electrical power.
  3. to change into another substance;
    transmute:The ancient alchemists sought ways to transform lead into gold.
  4. Electricityto change (voltage and current) by an electrical transformer.

n. [countable]
  1. Mathematicsa mathematical number obtained from a given quantity by mathematical process.
trans•for•ma•tion /ˌtrænsfɚˈmeɪʃən/USA pronunciation  n. [countable]: After just a few weeks of exercise the transformation in his health was remarkable.[uncountable]: transformation of solar power to electrical power.See -form-.

WordReference Random House Unabridged Dictionary of American English © 2024
trans•form  (v. trans fôrm;n. transfôrm),USA pronunciation v.t. 
  1. to change in form, appearance, or structure;
    metamorphose.
  2. to change in condition, nature, or character;
    convert.
  3. to change into another substance;
    transmute.
  4. [Elect.]
    • to increase or decrease (the voltage and current characteristics of an alternating-current circuit), as by means of a transformer.
    • to decrease (the voltage and current characteristics of a direct-current circuit), as by means of a transformer.
  5. [Math.]to change the form of (a figure, expression, etc.) without in general changing the value.
  6. [Physics.]to change into another form of energy.

v.i. 
  1. to undergo a change in form, appearance, or character;
    become transformed.

n. 
  1. [Math.]
    • a mathematical quantity obtained from a given quantity by an algebraic, geometric, or functional transformation.
    • the transformation itself.
  2. the result of a transformation.
  3. a transformation.
  4. [Logic.]transformation (def. 5).
  5. [Ling.]a structure derived by a transformation.
  • Latin trānsfōrmāre to change in shape. See trans-, form
  • Middle English transformen 1300–50
trans•form a•ble, adj. 
trans•form a•tive, adj. 
    • 1.See corresponding entry in Unabridged transfigure. Transform, convert mean to change one thing into another. Transform suggests changing from one form, appearance, structure, or type to another:to transform soybeans into oil and meal by pressure.Convert suggests so changing the characteristics as to change the use or purpose:to convert a barn into a house.

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