col Syllabification: (col)Pronunciation: /käl/Definition of col noun the lowest point of a ridge or saddle between two peaks, typically affording a pass from one side of a mountain range to another. Meteorology a region of slightly elevated pressure between two anticyclones. Origin: mid 19th century: from French, literally 'neck', from Latin collumcol in other Oxford dictionaries Definition of col in the British & World English dictionary