Meaning of butt hinge

butt' hinge"

Pronunciation: [key]
  1. a hinge for a door or the like, secured to the butting surfaces rather than to the adjacent sides of the door and its frame. Cf. flap (def. 20a). See illus. under
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.