Manna n. : The food supplied to the Israelites in their journey through the wilderness of Arabia; hence, divinely supplied food.

Manna n. : A name given to lichens of the genus Lecanora, sometimes blown into heaps in the deserts of Arabia and Africa, and gathered and used as food.

Manna n. : A sweetish exudation in the form of pale yellow friable flakes, coming from several trees and shrubs and used in medicine as a gentle laxative, as the secretion of Fraxinus Ornus, and F. rotundifolia, the manna ashes of Southern Europe.

Example:
Does Calf Manna Really Help The Growth And Performance Of My Pigs?

Taxonomy
manna, Exodus, the Israelites, Manna Ash, Manna From Heaven, heavenly manna, White Manna, Shabbat, tomb, Jewish Encyclopedia, desert, taste, source states, sacrament, free encyclopedia, critics, food, dew.

Defination from the web:
Manna (Hebrew: מָ‏ן) or Moun Salwa (Arabic, Persian, Urdu), sometimes or archaically spelled mana, is the name of a food which, according to the ... Some form critics posit conflicting descriptions of manna as derived from different lore, with the description in Numbers being from the Yahwist ...