Wordnet 3.0
NOUN (1)
1. 
 a hinge that looks like the letter T when it is opened; 
 similar to a strap hinge except that one strap has been replaced by half of a butt hinge that can be mortised flush into the stationary frame; 
[syn: tee hinge, T hinge]
WordNet (r) 3.0 (2006):
T hinge
    n 1: a hinge that looks like the letter T when it is opened;
         similar to a strap hinge except that one strap has been
         replaced by half of a butt hinge that can be mortised flush
         into the stationary frame [syn: tee hinge, T hinge]