nutrient,
food any substance (such as a chemical element or inorganic compound) that can be taken in by a green plant and used in organic synthesis
milk produced by mammary glands of female mammals for feeding their young
course a mode of action; "if you persist in that course you will surely fail"; "once a nation is embarked on a course of action it becomes extremely difficult for any retraction to take place"
nutriment Chemical elements which are involved in the construction of living tissue and which are needed by both plant and animal. The most important in terms of bulk are carbon, hydrogen and oxygen, with other essential ones including nitrogen, potassium, calcium, sulphur and phosphorus.