| split [split] COMPUTER SCIENCE To divide a data base, file, or other data set into two or more separate parts. GEOLOGY A coal seam that cannot be mined as a single unit because it is separated by a parting of other sedimentary rock. Also known as coal split; split coal. MINING ENGINEERING 1. To divide the air current into separate circuits to ventilate more than one section of the mine. 2. Any division or branch of the ventilating current. |