from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Obligatory; required: a compulsory examination.
- adj. Employing or exerting compulsion; coercive.
- n. Sports An element, such as a dive or school figure, required of all competitors in an athletic competition. Often used in the plural.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Required; obligatory; mandatory
- adj. Having the power of compulsion; constraining
- n. Something that is compulsory or required.
from the GNU version of the Collaborative International Dictionary of English
- adj. Having the power of compulsion; constraining.
- adj. Obligatory; enjoined by authority; necessary; due to compulsion.
from The Century Dictionary and Cyclopedia
- Exercising compulsion; tending to compel; compelling; constraining: as, compulsory authority; to take compulsory measures.
- Obligatory; due to or arising from compulsion; enforced or enforceable; not left to choice.
- Done under compulsion; resulting from compulsion.
- n. That which has the power of compelling; constraining authority.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. required by rule
From Latin compulsorius (Wiktionary)