cantrail means A length of metal (earlier timber) supporting the outer edge of the roof of a railway carriage; also found on locomotives, buses and coaches. Lexicurio rates it Sui generis — a strength score of 92 out of 100.
cantrail is pronounced /kæntˈɹeɪl/.
Etymology
From cant + rail.
noun
- A length of metal (earlier timber) supporting the outer edge of the roof of a railway carriage; also found on locomotives, buses and coaches.“As was briefly reported last month, the S.R. is experimenting with the Continental method of making the class of train accommodation more conspicuous by painting a coloured strip below the cantrail of the coaches.”