mon ‧ o ‧ rail /ˈmɒnəʊreɪl $ ˈmɑːnə-/ BrE AmE noun
1 . [uncountable and countable] a railway system that uses a single ↑ rail , usually high above the ground
2 . [countable] a train on a monorail system
mon ‧ o ‧ rail /ˈmɒnəʊreɪl $ ˈmɑːnə-/ BrE AmE noun
1 . [uncountable and countable] a railway system that uses a single ↑ rail , usually high above the ground
2 . [countable] a train on a monorail system
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012