Definition of mealy tree in English:

mealy tree

noun

  • Any of several viburnums characterized by the greyish pubescence of their twigs or the undersides of their leaves, especially (more fully "pliant mealy tree") the wayfaring tree, Viburnum lantana, of Eurasia.

Origin

Mid 17th century; earliest use found in John Parkinson (1566/7–1650), apothecary and herbalist. After early modern German mälbaum.