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Noun: humic shale
  1. Shale that is rich in humic acids

Type of: humate, shale

Nearest

humdrum
Hume
Hume Blake Cronyn
Hume Cronyn
humectant
humeral
humeral veil
humerus
humic
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humic shale
humic substance
humid
humidex
humidifier
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humidity
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humidness
humidor