IPA: /ˈmʌljən/
KK: /ˈmʌljən/
Describing a window or door that has vertical bars or divisions separating the panes of glass.
The old church had beautiful mullioned windows that added to its charm.
Mullioned → The word 'mullioned' comes from 'mullion' (from Middle French *moulion*, meaning a small molding or a vertical division in a window). The suffix '-ed' indicates a past participle form. Thus, 'mullioned' refers to something that has been divided by a vertical element, typically in architecture, such as a window with vertical bars.
Imagine a window that has been 'divided' by a 'mullion' — that's why 'mullioned' describes a window with vertical sections.