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mutation

mu·ta·tion [ myoo táysh'n ] (plural mu·ta·tions)


noun 
Definition:
 
1. change in genetic material: a random change in a gene or chromosome resulting in a new trait or characteristic that can be inherited. Mutation can be a source of beneficial genetic variation, or it can be neutral or harmful in effect.

2. biology 
Same as  mutantn (sense 1)


3. alteration: the action or process of changing something or of being changed

4. linguistics 
Same as  umlautn (sense 1)


5. phonetics phonetic change: a phonetic change found in Celtic languages in which the initial consonant of a word changes according to the preceding word


mu·ta·tion·al adjective
mu·ta·tion·al·ly adverb
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