mull

⁴mull

noun

Definition of MULL

1

: friable forest humus that forms a layer of mixed organic matter and mineral soil and merges gradually into the mineral soil beneath

2

: a finely powdered solid especially in a suspension

Origin of MULL

Dan muld, from Old Norse mold dust, soil; akin to Old High German molta dust, soil — more at mold

First Known Use: 1928

Other Agriculture/Gardening Terms

fallow, graft, heirloom, loam, potash, soilage, swath, tilth, windfall