Definition of mutation theory in English:

mutation theory

noun

Biology
historical
  • A theory proposed by the Dutch biologist Hugo de Vries according to which new species arise by abrupt divergence from the parent type as a result of mutation.

Origin

Early 20th century; earliest use found in The Botanical Gazette. From mutation + theory, after German Mutationstheorie.

Pronunciation

mutation theory

/mjuːˈteɪʃn ˌθɪəri/