| humic acid | กรดฮิวมิก [ธรณีวิทยา๑๔ ม.ค. ๒๕๔๖] |
| humic acid | (n) a dark brown humic substance that is soluble in water only at pH values greater than 2, Example: the half-life of humic acid is measured in centuries |
| フミン酸 | [フミンさん, fumin san] (n) humic acid [Add to Longdo] |