definition of
column

[1] #1 column n. a line of units following one after another. wn

[2] #2 column n. [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. wn

[3] #3 column n. a vertical array of numbers or other information; "he added a column of numbers". wn

[4] #4 column n. [tower, pillar] anything that approximates 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". wn

[5] #5 column n. [editorial, newspaper column] an article giving opinions or perspectives. wn