headwall

Tanımlar (İngilizce)

1. isim The highest cliff of a glacial cirque.
2. isim The steep cliff at the back of a cirque.
3. isim A retaining wall at the outlet of a drain, culvert or tunnel.

   “The platforms of all stations from Shepherds Bush to Liverpool Street have been lengthened from 325 ft. to 427 ft. between tunnel headwalls, to take longer trains.”