Roll ‧ er ‧ blade /ˈrəʊləbleɪd $ ˈroʊlər-/ BrE AmE noun [countable] trademark
a special boot with a single row of wheels fixed under it, used for ↑ skating on hard surfaces
⇨ ↑ roller skate , ↑ in-line skate
Roll ‧ er ‧ blade /ˈrəʊləbleɪd $ ˈroʊlər-/ BrE AmE noun [countable] trademark
a special boot with a single row of wheels fixed under it, used for ↑ skating on hard surfaces
⇨ ↑ roller skate , ↑ in-line skate
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012