columnar

形容词 columnar:

1. having the form of a column
   同义词：columniform, columnlike
2. characterized by columns

co.lum.nar

adj.（形容词）
Having the shape of a column.
圆柱形的：有着圆柱形状的
Constructed with or having columns.
圆柱的：圆柱的或由圆柱构成的