See Also: meditullium(dictionary)

meditullium (iou)



meditullium noun. Now rare or obsolete. E17.
[Latin, from medius MID adjective + 2nd elem. perh. cogn. with tellus earth.]
A middle part or substance; spec. (a) Anatomy = DIPLOE; (b) Botany an inner layer in a leaf, root, etc.