mullion

noun

mul·​lion ˈməl-yən How to pronounce mullion (audio)
: a slender vertical member that forms a division between units of a window, door, or screen or is used decoratively
mullion transitive verb

Examples of mullion in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Defined by an angular stucco façade and art glass windows with wood mullions, the home was among the first of Wright’s to feature a flat roof. Katherine McLaughlin, Architectural Digest, 6 Sep. 2024 There are endless options from pane styles to number of mullions. Cameron Beall, Southern Living, 12 Aug. 2024 To create the facade of the tower, glass from Minnesota and aluminum mullions from South Korea were shipped to Singapore for assembly; the windows were then shipped to New York. Fred A. Bernstein, New York Times, 12 June 2024 In this photograph, two Black passengers sit at the rear of a New Orleans streetcar while four white passengers sit at the front; all look out from a row of windows, the mullions between them emphasizing their strict separation. Lucy McKeon, New York Times, 3 June 2024 Not because of the large window profiles and reduced mullions on the upper decks that enhance the view, or the extended flydeck with a large Jacuzzi for soaks and cocktails. Julia Zaltzman, Robb Report, 3 Nov. 2023 Daniel and Feldman were so exacting about the symmetry between the upper windows and the doors below that the couple made sure that when the sliding doors were closed, the edges lined up with the mullions above. Caron Golden, San Diego Union-Tribune, 22 Apr. 2023 Architectural details include eyebrow dormer windows, two-story columns and spiderweb mullion windows, according to Ms. Seery. Sarah Paynter, WSJ, 10 Mar. 2022 Then, spread glue in the back rail mortises and on the mullion tenons. Darren Orf, Popular Mechanics, 8 Aug. 2020

Word History

Etymology

probably alteration of monial mullion

First Known Use

1567, in the meaning defined above

Time Traveler
The first known use of mullion was in 1567

Dictionary Entries Near mullion

Cite this Entry

“Mullion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mullion. Accessed 21 Dec. 2024.

Kids Definition

mullion

noun
mul·​lion ˈməl-yən How to pronounce mullion (audio)
: a slender upright bar which separates sections of windows, doors, or screens
mullion verb

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