mutation

/mjuːˈteɪʃən/
noun
  1. A change in the form or structure of something, especially an unexpected or unusual one.
    • The mutation in the company's policy surprised all the employees.
    • A mutation in the weather pattern caused a long drought.
    • The artist's work shows a mutation from realistic to abstract styles.
  2. A change in the genetic material of a cell or organism that can be passed to future generations.
    • Some mutations are harmless, while others can lead to diseases like cancer.
    • Scientists discovered a mutation in the DNA that affects eye color.
    • A genetic mutation can cause a plant to grow differently.
Antonyms
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