column

(redirected from gray column)
Also found in: Dictionary, Thesaurus, Medical, Encyclopedia.
Related to gray column: ventral column
References in periodicals archive ?
Mount Mayon, the Philippines' active volcano, exploded thunderously Monday, sending a huge gray column of lava fragments, ash, and steam 10 kilometers into the sky and prompting authorities to warn that a violent eruption may be imminent.
The pink and gray columns represent trees and branches reaching to the sky.
Early last century - long before Eugene residents dreamed of clinging to those rocks with fingers and toes for recreation - some entrepreneur figured out how to cleave the hard gray columns of stone into brick shapes that could be used for construction.