In archit., the gain or mortise in which rafters or joists lie
http://lila-erc.eu/data/lexicalResources/LewisShort/id/LexicalSense/n9186.5 an entity of type: LexicalSense
In archit., the gain or mortise in which rafters or joists lie
In archit., the gain or mortise in which rafters or joists lie