Obligatory; required: a compulsory examination.
Employing or exerting compulsion; coercive.
Sports An element, such as a dive or school figure, required of all competitors in an athletic competition. Often used in the plural.
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.