Definitions for muntinˈmʌn tn
Random House Webster's College Dictionary
a bar for holding the edges of window panes within a sash.
Category: Building Trades
Origin of muntin:
1300–50; earlier mountan, montan, ME mountaun, mountain < MF montant, n. use of prp. of monter to mount1
One of the separators between panes of glass in a composite window.
alt. of Munting