English: glazing bar
Welsh: bar gwydro 
Subject: Ystadau a Cadw
English definition: The solid wooden framing piece made to receive panes of glass. 
Welsh definition: Darn fframio pren solet ar gyfer derbyn paenau o wydr. Hefyd defnyddir ‘bar gwydriad’.
Welsh context: Ffynhonnell: Taflen wybodaeth gyhoeddus Cyngor Gwynedd.