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Glite Dictionary
humin

humin

1 9.9
A black substance in soil made from dead plants that does not dissolve in water
  • noun
  • Specialized
: humina
  • The scientist extracted humin from the soil sample for further analysis.

Examples

  • Researchers study humin to better understand soil organic matter composition.

  • The soil is rich in humin.

  • Because humin is not soluble in water, it remains as residue after other substances are washed away.

  • Farmers often add humin to improve soil quality.

  • Because humin is not soluble in water, it remains as residue after other substances are washed away.

  • Researchers study humin to better understand the organic substances in soil.

  • The scientist extracted humin from the soil sample to analyze its composition.

Synonyms

humus
vshumin
  • Specialized
3 5.8

Decayed plant matter in soil that helps plants grow

is the insoluble black fraction formed from plant decomposition
humic substance
vshumin
  • Specialized
1 7.9

A dark material made from dead plants and animals found in soil and peat

is narrower and denotes the insoluble black part from plant decay

Surface Forms

humin singular
humins plural

Morphology

humin = humus (semi-transparent) = hum + in

Formally derived from 'humus' with the chemical suffix '-in'; the relation to soil organic matter is clear but the specialized, technical sense (insoluble fraction) is not fully predictable for general learners.

Etymology

Humin comes from the Latin word humus, which means 'earth' or 'soil', and it names the dark part of old plants left in the ground. So, humin is the black organic substance in soil that does not dissolve in water.