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Definition 2024

muntin ‎(plural muntins)

One of the separators between panes of glass in a composite window.
- 1979, Cormac McCarthy, Suttree, Random House, p.174:
  He looked for a bell but there were just the wires hanging from a hole so he tapped on the glass of the sidelights. They gave soft and soundless in their lead muntins.

window pane separator