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Definition of "microseism" []

  • A faint earth tremor caused by natural phenomena, such as winds and strong ocean waves. (noun)

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.

Use "microseism" in a sentence
  • "When one of these waves interacts with the sea bottom, it produces a small tremor, or microseism , that travels thousands of miles through the solid Earth at about 2.5 miles per second."