Examples from the Web for columnar
Shaded by a ledge of rock, beneath a facade of columnar lava, we ate our dinner.A Naturalist's Voyage Round the World|Charles Darwin
The olive-district has long ago been left behind; and now the columnar date-palm is also to be among the things that were.
They form an outer row of columnar cells internal to which the cells are more rounded.
The nuclei of the columnar outer cells measure about 0.008 mm.
Where the embryonic rim projects most, a larger number of cells have assumed a columnar form.
Word Origin and History for columnar
1728, from Late Latin columnaris "rising in the form of a pillar," from columna "column" (see column).