Strong's Definition
from the same as 5468; a colonnade or internal portico (from its rows of pillars)
KJV Usage: porch
STEPBible — Tyndale Abridged Hebrew Lexicon
מִסְדְּרוֹן (mis.de.ron) — porch. 1) porch, colonnade 1a) meaning uncertain
UBS Dictionary of Biblical Hebrew
noun m · סֵדֶר · שְׂדֵרָה
Buildings
vestibule, porch = room of relatively small size ► functioning as entrance room to a larger room
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
[מִסְדְּרוֹן] n.[m.] porch, colonnade ? (place of a row (of pillars)?);—only Ju 3:23 ref