In late Gothicarchitecture, an interpenetrating moulding is a decoration by means of mouldings which seem to pass through solid uprights, transoms, or other members. They are often two sets of architectural members penetrating one another, in appearance, as if both had been plastic when they were put together. Research Interpenetrating Moulding
 
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert