Definition of speciation in English:

speciation

Pronunciation /ˌspēSHēˈāSHən/ /ˌspiʃiˈeɪʃən/ /ˌspēsēˈāSHən/ /ˌspisiˈeɪʃən/

noun

Biology
  • The formation of new and distinct species in the course of evolution.

    ‘Many of us think of evolution as speciation, but populations of insects evolved resistance without budding into new species.’
    • ‘We are the product of a process of speciation, competition, and ecological change.’
    • ‘The creation of a new species is known as speciation.’
    • ‘If final speciation was not done on site, participants were asked to identify their reference laboratory.’
    • ‘There are hundreds of cases of evolutionary change observed in progress and dozens of observed speciations.’