roller_blade
1. [ verb ] travel on shoes with a single line of rubber wheels attached to their soles
Examples:

"you'd better wear a helmet and knee protectors when you roller blade!"

Related terms: skate sport
2. [ noun ] (sport,games) a shoe with rollers fixed to the sole in a line
Synonyms: in-line_skate
Related terms: skate
Similar spelling:   roller_blind
  roller_bit
  roller_bearing
  roller_bandage