rev·o·lu·tion·ar·y  (r ĕv ′ə-l sh ə-n ĕr ′ē)
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adj.1. a. often Revolutionary Relating to or being a revolution: revolutionary war; a museum of the Revolutionary era. b. Bringing about or supporting a political or social revolution: revolutionary pamphlets. 2. Marked by or resulting in radical change: a revolutionary discovery. n. pl. rev·o·lu·tion·ar·ies 1. A militant in the struggle for revolution. 2. A supporter of revolutionary principles.
rev′o·lu′tion·ari·ly adv. rev′o·lution·ar′i·ness n. |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2020 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendices
Thousands of entries in the dictionary include etymologies that trace their origins back to reconstructed proto-languages. You can obtain more information about these forms in our online appendices:
Indo-European Roots
Semitic Roots
The Indo-European appendix covers nearly half of the Indo-European roots that have left their mark on English words. A more complete treatment of Indo-European roots and the English words derived from them is available in our Dictionary of Indo-European Roots.
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