subcolumnarWiktionary 原文英美构词拆解subsub-前缀columnarcolumnar词干sub-Under, beneath. · Subsidiary, secondary.词源说明From sub- + columnar.释义形容词adjective1(geology) Imperfectly or columnar.2(biology) This term needs a definition. Please help out and add a definition, then remove the text {{rfdef}}.