| 单词 | mutation |
| 释义 | mutation —mutational, adj. —mutationally, adv. /myooh tay"sheuhn/, n. 1. Biol. a. a sudden departure from the parent type in one or more heritable characteristics, caused by a change in a gene or a chromosome. b. 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. Phonet. umlaut. 5. Ling. (in Celtic languages) syntactically determined morphophonemic phenomena that affect initial sounds of words. [1325-75; ME mutacio(u)n < L mutation- (s. of mutatio) a changing. See MUTATE, -ION] |
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