microevolutionPronunciation: /ˌmʌɪkrəʊiːvəˈluːʃ(ə)n, -ˈljuːʃ(ə)n, -ɛv-/Definition of microevolution noun [mass noun] Biology evolutionary change within a species or small group of organisms, especially over a short period. Derivatives microevolutionary adjective microevolution in other Oxford dictionaries Definition of microevolution in the US English dictionary
