mu·ta·tion (my -t  sh n)n. 1. The act or process of being altered or changed. 2. An alteration or change, as in nature, form, or quality. 3. Genetics a. A change of the DNA sequence within a gene or chromosome of an organism resulting in the creation of a new character or trait not found in the parental type. b. The process by which such a change occurs in a chromosome, either through an alteration in the nucleotide sequence of the DNA coding for a gene or through a change in the physical arrangement of a chromosome. c. A mutant. 4. Linguistics The change that is caused in a sound by its assimilation to another sound, such as umlaut. [Middle English mutacioun, from Old French mutacion, from Latin m  tti , mttin-, from past participle of mtre, to change; see mutate.]mu·ta tion·al adj.mu·ta tion·al·ly adv. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Adj. | 1. | mutational - of or relating to or resulting from mutation |
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