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单词 mutational
释义

WordReference Random House Learner's Dictionary of American English © 2024
mu•ta•tion /myuˈteɪʃən/USA pronunciation   n. 
  1. Genetics[Biology.]
    • sudden departure or change from the parent type, seen in offspring in one or more characteristics that have been inherited, caused by a change in a gene or a chromosome: [uncountable]Mutation can sometimes benefit a species.[countable]Some mutations may result in a change of color.
    • [countable] an individual, species, or the like resulting from such a change:a mutation that was much bigger than the rest.
  2. a change or alteration, as in form or nature: [uncountable]the possibility of social mutation.[countable]economic mutations and other financial shifts.
mu•ta•tion•al, adj. See -mut-.

WordReference Random House Unabridged Dictionary of American English © 2024
mu•ta•tion  (myo̅o̅ tāshən),USA pronunciation n. 
  1. Genetics[Biol.]
    • a sudden departure from the parent type in one or more heritable characteristics, caused by a change in a gene or a chromosome.
    • an individual, species, or the like, resulting from such a departure.
  2. the act or process of changing.
  3. a change or alteration, as in form or nature.
  4. Phonetics, Linguisticsumlaut.
  5. Linguistics(in Celtic languages) syntactically determined morphophonemic phenomena that affect initial sounds of words.
  • Latin mūtātion- (stem of mūtātiō) a changing. See mutate, -ion
  • Middle English mutacio(u)n 1325–75
mu•tation•al, adj. 
mu•tation•al•ly, adv. 

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更新时间:2025/2/23 11:51:27