a. That divides; pertaining to, making, or noting, a division; as, a divisional line; a divisional general; a divisional surgeon of police. [ 1913 Webster ]
Divisional planes (Geol.), planes of separation between rock masses. They include joints. [ 1913 Webster ]
(adj) constituting a division or an aliquot part of the basic monetary unit, Example:American divisional (fractional) coins include the dime and the nickel; fractional currency is currency in denominations less than the basic monetary unit