vicariance

vi car i ance |vīˈke (ə )rēəns, vi- vaɪˈkɛriəns | ▶noun Biology the geographical separation of a population, typically by a physical barrier such as a mountain range or river, resulting in a pair of closely related species. ORIGIN 1950s: from Latin vicarius ‘substitute ’ + -ance .

vicariance

vicariance |vɪˈkɛːrɪəns, vʌɪ -| ▶noun [ mass noun ] Biology the geographical separation of a population, typically by a physical barrier such as a mountain range or river, resulting in a pair of closely related species. ORIGIN 1950s: from Latin vicarius ‘substitute ’ + -ance .