Similar words: column, columnist, fifth column, newspaper column, vertebral column, gossip columnist, alumna, alumnae. Meaning: [kə'lʌmnə] 
adj. 1. having the form of a column 2. characterized by columns.
adj. 1. having the form of a column 2. characterized by columns. 
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91. This paper explores three ruled surfaces geometry properties about columnar surface, cone surface and hyperbolic paraboloid.
More similar words: column, columnist, fifth column, newspaper column, vertebral column, gossip columnist, alumna, alumnae, columbus, columbia, columbian, columbine, columbus day, british columbia, christopher columbus, autumnal, circumnavigate, autumnal equinox, alumni, circumnavigation, alumnus, calumny, calumniate, volume, emolument, voluminous, sales volume, luminary, speak volumes, trading volume.