A broad, shallow, generally flat-floored volcanic crater of explosive origin that is often filled with water.
[German, from Vulgar Latin *mara, standing water, lake, from Latin mare, sea; see MARE2.]
(click for a larger image)maar
Eifel region of Germany
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Indo-European & Semitic Roots Appendicies
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