Search Result for "tail-bay": 

The Collaborative International Dictionary of English v.0.48:

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. [1913 Webster] 2. The part of a canal lock below the lower gates. [1913 Webster]