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bioturbation

[bahy-oh-tur-bey-shuh n]
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noun
  1. the alteration and disturbance of a site by living organisms; the turning and mixing of sediments by organisms, as rodents.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
bioturbation in Science

bioturbation

[bī′ō-tər-bā′shən]
  1. The stirring or mixing of sediment or soil by organisms, especially by burrowing, boring, or ingestion.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.