Entry from US English dictionary
A narrow hinge with a pin of the same length as the movable part.
- This allowed me to attach both frames using one long piano hinge.
- To join the framed artwork together, I used piano hinges.
- Another large work is like the skeletal outline of a cupboard, constructed of white-painted wood, glass and piano hinges.
For editors and proofreaders
Syllabification: pi·a·no hinge
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