What does "food" mean?

Food: Anything that instructs the intellect, excites the feelings, or molds habits of character; that which nourishes. This may prove food to my displeasure. Shak. In this moment there is life and food For future years. Wordsworth. Note: Food is often used adjectively or in self-explaining compounds, as in food fish or food-fish, food supply. Food vacuole (Zoöl.), one of the spaces in the interior of a protozoan in which food is contained, during digestion. -- Food yolk. (Biol.) See under Yolk.