Definition of piston corer in English:

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piston corer

Entry from British & World English dictionary


A piston-driven cylindrical device for taking samples of material from the seabed.
Example sentences
  • A piston corer consists of a tubular barrel driven into the sediment by a large weighted head.
  • Cores were collected by piston corer, extruded in the field, and the top one or two centimeters were used for chironomid analysis.
  • The piston corer is designed to take samples from soft cohesive soils.
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