1. A dark brown humic substance that is soluble in water only at pH values greater than 2
   "the half-life of humic acid is measured in centuries"

Derived forms: humic acids

Type of: humic substance

Encyclopedia: Humic acid

• short gastric artery
• short hundredweight
• short iron
• short leg
• short letter
• short line
• short pants
• short ribs
• short sale
• short saphenous vein
• short selling
• short shrift
• short sleep
• short sleeve
• short story
• short subject
• short temper
• short time
• short ton
• short wave
• short whist
• Short's aster
• short-beaked
• short-billed
• short-billed marsh wren