food or fodder, particularly that taken in by plants or animals.
material that feeds a fire.
(figuratively) food for thought.
bland intellectual fare; an undemanding diet of words
(context, nutrition) One of three major classes of food or source of food energy (4 kcal/gram) abundant in animal-derived foods (ie: meat) and some vegetables, such as legumes. see carbohydrate and fat for the other two major classes
(biochemistry) A large, complex molecule composed of long chains of amino acids linked by a peptide bond