Definition that contains humus
- dirt the part of the earth's surface consisting of humus and disintegrated rock
- soil the part of the earth's surface consisting of humus and disintegrated rock
- humification the process of the formation of humus from plant remains
- humify convert (plant remains) into humus
- a-horizon the top layer of a soil profile; usually contains humus
- humified converted to humus
- pinesap fleshy tawny or reddish saprophytic herb resembling the Indian pipe and growing in woodland humus of eastern North America; in some classifications placed in a separate genus Hypopitys
- false beachdrops fleshy tawny or reddish saprophytic herb resembling the Indian pipe and growing in woodland humus of eastern North America; in some classifications placed in a separate genus Hypopitys
- monotropa hypopithys fleshy tawny or reddish saprophytic herb resembling the Indian pipe and growing in woodland humus of eastern North America; in some classifications placed in a separate genus Hypopitys
- ground fire a forest fire that burns the humus; may not appear on the surface