Pronunciation: (slī'dur),[key] —n. 1. a person or thing that slides.
2. Baseball.a fast pitch that curves slightly and sharply in front of a batter, away from the side from which it was thrown.
3. any of several freshwater turtles of the genus Chrysemys, of North America, having a smooth shell usually olive brown with various markings above and yellow below: some, esp. C. scripta, are raised commercially and the young sold as pets, rarely surviving to adulthood.