Or maqtsoa {mak-tso-ah}; or (feminine) maqtso-ah {mak-tso-aw'}; from qatsa' in the denominative sense of bending; an angle or recess -- corner, turning.
see HEBREW qatsa'
H4740. miqtsoa
מִקָצֹעַ noun masculineEzekiel 46:21 place of corner-structure, (inner) corner-buttress (as (place of) cutting off of an inner angle if √ rightly explained; see RSl.c. 71-81); — absolute ׳מ Nehemiah 3:19 +, צוֺעַ- 3:20 +; construct צֹעַ- Ezekiel 46:21 (twice in verse); plural absolute מִקָצֹעֹת Exodus 26:24; 36:29, construct עוֺת- Ezekiel 46:22, מִקְצוֺעֵי 46:21, also מְקֻצְעֹת Exodus 26:23; 36:28 Di (not
Pu`al Participle from קָצַע Thes BuhlLex 13 and others), but read probably מִקְצֹעֹת, so SS Baen; suffix מִקְצֹעוֺתָיו Ezekiel 41:22;-corner-post of altar 41:22, tabernacle Exodus 26:23-24, = 36:28-29, (inner) buttress-place of court, where the small corner-courts were, Ezekiel 46:21 (3 t. in verse); 46:22; of inner (rock- ?) buttress at northeast corner of wall of Jerusalem, ׳הַמּ, nearly = proper name, Nehemiah 3:19-20, 25, also (distinguished from מִּנָּה) 3:24; 2 Chronicles 26:9.