column, chromatography column - a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands --2is a kind oftube, tubing
column, tower, pillar - anything tall and thin approximating the shape of a column or tower; "the test tube held a column of white powder"; "a tower of dust rose above the horizon"; "a thin pillar of smoke betrayed their campsite" --4is a kind ofshape, form --4has particulars: columella; hoodoo
column, pillar - (architeture) a tall cylindrical vertical upright and used to support a structure --7is a kind ofupright, vertical --7is a part of temple --7has parts: