1. biogenic

adjective. essential for maintaining the fundamental life processes.


  • expendable


  • -genic (English)
  • bio- (English)
  • βίος (Ancient Greek (to 1453))

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Sentences with biogenic

1. Noun, singular or mass
Clastic limestone is made up of biogenic grains, or clasts, rather than eroded rock fragments, as in the case of sandstones.

2. Adjective
Such biogenic clasts are shell or bone fragments from dead marine organisms and accumulate by sinking to the bottom of the sea or any other body of water.