FALMOUTH — The School Board on Monday night unanimously banned the use of electronic cigarettes on school grounds.

The board updated policy language to add electronic cigarettes to its list of substances banned from school property. The policy revisions were required by the state.

Electronic cigarettes are defined by the National Institute of Drug Abuse as battery-operated devices that deliver nicotine with flavorings and other chemicals to users in the form of vapor instead of smoke. They are also known as e-cigarettes and electronic nicotine delivery systems, or ENDS.