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English definition of “mutation”

mutation

noun     /mjuːˈteɪ.ʃən/
[U] the way in which genes change and produce permanent differences: It is well known that radiation can cause mutation.GeneticsInnate and congenital [C] a permanent change in an organism, or the changed organism itself: Environmental pressures encourage genes with certain mutations to persist and others to die out. These plants carry the mutation for red flowers.GeneticsInnate and congenital
(Definition of mutation noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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