wye Syllabification: (wye)Pronunciation: /wī/Definition of wye noun a support or other structure shaped like a Y, in particular. North American a triangle of railroad track, used for turning locomotives or trains. (in plumbing) a short pipe with a branch joining it at an acute angle. Origin: mid 19th century: the letter Y represented as a wordwye in other Oxford dictionaries Definition of wye in the British & World English dictionary
