mullion

(mul′yən)

noun

a slender, vertical dividing bar between the lights of windows, doors, etc.

Origin: prob. altered < OFr moienel < moien, median < L medianus, middle: see mid

transitive verb

to furnish with or divide by mullions

Related Forms:

See mullion in American Heritage Dictionary 4

noun

A vertical member, as of stone or wood, dividing a window or other opening.

Origin:

Origin: Alteration of Middle English moniel

Origin: , from Anglo-Norman moynel

Origin: , perhaps from moienel, middle

Origin: , from moien

Origin: , from Latin mediānus

Origin: , from medius; see medhyo- in Indo-European roots

Related Forms:

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