mac·ro·ev·o·lu·tion (m k r - v -l  shn, - v-)n. Large-scale evolution occurring over geologic time that results in the formation of new taxonomic groups. mac ro·evo·lution·ary (-sh-nr) adj. |
macroevolution [ˌmækrəʊˌiːvəˈluːʃən]
n
(Life Sciences & Allied Applications / Biology) Biology the evolution of large taxonomic groups such as genera and families
macroevolutionary adj
| macroevolution (mkr-v-lshn) Evolution that results in the formation of a new taxonomic group above the level of a species. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. |  macroevolution - evolution on a large scale extending over geologic era and resulting in the formation of new taxonomic groupsorganic evolution, phylogenesis, phylogeny, evolution - (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms |
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