角かく柱ちゅう

noun

prism

Only with reading かくちゅう

Geometric term for a prism, typically with polygonal bases. Read as かくちゅう.

• 三さん角かく柱ちゅうは底てい面めんが三さん角かく形けいの角かく柱ちゅうです。

  A triangular prism is a prism whose base is a triangle.

noun

polygonal pillar; square pillar

Architectural or structural term for a pillar with a polygonal cross-section, especially square. Can be read as either かくちゅう or かくばしら, but かくちゅう is more common in technical contexts.

• この建たて物ものの正しょう面めんには四し角かくい角かく柱ちゅうが並ならんでいる。

  Square pillars line the front of this building.

noun

bamboo

Only with reading かくばしら

Rare or specialized term for bamboo, read as かくばしら. Possibly an older or poetic usage; modern Japanese normally uses 竹 (たけ).

• 古ふるい文ぶん献けんでは、角かく柱ばしらが竹たけを指さすことがある。

  In old documents, 角柱 (かくばしら) can refer to bamboo.