portal tomb
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portal tomb
n.
A dolmen, especially one found in Ireland.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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Noun | 1. | ![]() megalith, megalithic structure - memorial consisting of a very large stone forming part of a prehistoric structure (especially in western Europe) |
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