Definition of pedon in US English:

pedon

noun

  • A notional column of soil that extends vertically from the surface to the underlying parent material and is of sufficient area (usually at least a square metre) to be representative of the surrounding soil and its horizons.

Origin

1960s. Either from pedo- + -on, or from ancient Greek πέδον ground, earth.

Pronunciation

pedon

/ˈpɛdɒn/