See Also: ulmin(medicine)
ulmin(dictionary)

ulmin (iou)



ulmin noun. E19.
[Latin ulmus elm + -IN1.]
A substance which exudes from the inner bark of elm and some other trees. E-M19.
A dark brown or black amorphous degradation product of wood or plant matter, which is an early stage of conversion to coal, and is also synthesized artificially from sugars etc. M19.
ulmic adjective (now rare or obsolete):
ulmic acid = ULMIN M19.