Definition of "humic" [hu•mic]

• Of, relating to, or derived from humus. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Specifically, they evaluate changes in total soil organic carbon and in the chemical characteristics of the soil organic matter and its main constituents known as humic substances (from humus origin)."
• "But the environmental significance of these processes is still unknown, Jafvert says, because naturally-occurring materials called humic acids also generate ROS in water."
• "Organic fertilizers and soil amendments such as humic acid will provide much better nutrition to any plant than chemical fertilizers will."