noun, noun which may take the genitive case particle 'no'
koma shape; five-sided shape like a shogi piece
Refers to a pentagonal shape resembling a traditional shogi (Japanese chess) piece, often used in design, architecture, or heraldry.
See also: 駒 (こま)
この家紋は駒形をしている。
This family crest has a koma shape.
駒形の窓が特徴的な建物だ。
It is a building characterized by koma-shaped windows.