八はっ角かく柱ちゅうMeaningsNoun1. octagonal prismKanji used八eight角angle柱pillarComposed of八はっ角かくoctagon; star anise (Illicium verum); sailfin poacher (Podothecus sachi)Noun柱ちゅうbridge (of a koto, etc.); cylinder; prismNoun