slider

noun

1.
a person who slips or slides because of loss of traction
skidder slipper
2.
someone who races the luge
luger
Derived from:
slide
3.
freshwater turtle of United States and South America; frequently raised commercially; some young sold as pets
Pseudemys scripta yellow-bellied terrapin
4.
a fastball that curves slightly away from the side from which it was thrown
Derived from:
slide