Man·na n.
 1. Script. The food supplied to the Israelites in their journey through the wilderness of Arabia; hence, divinely supplied food.
 2. Bot. 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; called also manna lichen.
 3. Bot. & Med. 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 Fraxinus rotundifolia, the manna ashes of Southern Europe.
 Note: ☞ Persian manna is the secretion of the camel's thorn (see Camel's thorn, under Camel); Tamarisk manna, that of the Tamarisk mannifera, a shrub of Western Asia; Australian, manna, that of certain species of eucalyptus; Briançon manna, that of the European larch.
 Manna insect Zool, a scale insect (Gossyparia mannipara), which causes the exudation of manna from the Tamarix tree in Arabia.

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 cam·el n.
 1. Zool. A large ruminant used in Asia and Africa for carrying burdens and for riding.  The camel is remarkable for its ability to go a long time without drinking.  Its hoofs are small, and situated at the extremities of the toes, and the weight of the animal rests on the callous. The dromedary (Camelus dromedarius) has one hump on the back, while the Bactrian camel (Camelus Bactrianus) has two.  The llama, alpaca, and vicuña, of South America, belong to a related genus (Auchenia).
 2. Naut. A water-tight structure (as a large box or boxes) used to assist a vessel in passing over a shoal or bar or in navigating shallow water. By admitting water, the camel or camels may be sunk and attached beneath or at the sides of a vessel, and when the water is pumped out the vessel is lifted.
 Camel bird Zool., the ostrich.
 Camel locust Zool., the mantis.
 Camel's thorn Bot., a low, leguminous shrub (Alhagi maurorum) of the Arabian desert, from which exudes a sweetish gum, which is one of the substances called manna.

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