evolutionary

/ˌɛvəˈluʃəˌnɛri/
adjective
  1. Relating to the process of evolution, especially in biology.
    • Evolutionary biology helps us understand how species change over time.
    • Many evolutionary adaptations help animals survive in harsh environments.
    • The evolutionary history of whales shows they once lived on land.
  2. Involving gradual development or change over time.
    • Language change is an evolutionary process that happens slowly.
    • The company took an evolutionary approach to improving its products.
    • The design of the car was evolutionary rather than revolutionary.