Find the word definition

The Collaborative International Dictionary
Tail-bay

Tail-bay \Tail"-bay`\, n.

  1. (Arch.) One of the joists which rest one end on the wall and the other on a girder; also, the space between a wall and the nearest girder of a floor. Cf. Case-bay.

  2. The part of a canal lock below the lower gates.

Wiktionary
tail-bay

n. 1 (context architecture English) One of the joists which rest one end on the wall and the other on a girder. 2 (context architecture English) The space between a wall and the nearest girder of a floor. 3 The part of a canal lock below the lower gates.