English

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Etymology

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From bio- +‎ concretion.

Noun

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bioconcretion (plural bioconcretions)

  1. Hardened biological materials.
    • 2007, D. Roy Cullimore, Practical Manual of Groundwater Microbiology, Second Edition[1]:
      These relatively inert materials simply collect within the biomass and can sometimes gradually become bioconcretions.