New and Used American Eagle RVs For Sale. Current American Eagle inventory - find local, new and used listings from private RV owners and dealers. American Coach American Eagle (79)
Definition of evolve for English Language Learners. : to change or develop slowly often into a better, more complex, or more advanced state : to develop by a process of evolution.
The dictionary meaning of evolution is âgradual development of something or a gradual process in which something changes from one stage to another.â In other words, evolution is a process in which something passes through different stages, generally progressive, over a period.