food

(n.) any of a series of organic substances derived from a specific set of carbon monomer bases which living beings assimilate through digestion in order to perpetuate their lives, as though it will fill the holes in their sad little existences

A piece of material suitable for consumption to gain energy within one's body. Unfortunately it will not help with crippling sadness, but some may treat it as though it does.
(also: crippling sadness)
(also: common misunderstandings)