Definition of turtle noun from the Oxford Advanced American Dictionary

     

    turtle

     noun
    noun
    NAmE//ˈtərt̮l//
     
     
    jump to other results
  1. 1(also sea turtle) a large reptile with a hard round shell, that lives in the ocean
  2. 2 (informal) any reptile with a large shell, for example a tortoise or terrapin
  3. Idioms
    turn turtle
     
    jump to other results
    (of a boat) to turn over completely while sailing
See the Oxford Advanced Learner's Dictionary entry: turtle