Definition of evolve verb from the Oxford Advanced American Dictionary

      

    evolve

     verb
    verb
    NAmE//ɪˈvɑlv//
     
    Verb Forms present simple I / you / we / they evolve
     
    he / she / it evolves
     
    past simple evolved
     
    -ing form evolving
     
     
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  1. 1[intransitive, transitive] to develop gradually, especially from a simple to a more complicated form; to develop something in this way evolve (from something) (into something) The idea evolved from a drawing I discovered in the attic. The company has evolved into a major chemical manufacturer. evolve something (from something) Each school must evolve its own way of working.
  2. 2[intransitive, transitive] (biology) (of plants, animals, etc.) to develop over time, often many generations, into forms that are better adapted to survive changes in their environment evolve (from something) The three species evolved from a single ancestor. evolve something The dolphin has evolved a highly developed jaw.
See the Oxford Advanced Learner's Dictionary entry: evolve