1. (Anat.)
Defn: The terminal part of the leg of man or an animal; esp., the part below the ankle or wrist; that part of an animal upon which it rests when standing, or moves. See Manus, and Pes.
2. (Zoöl.)
Defn: The muscular locomotive organ of a mollusk. It is a median organ arising from the ventral region of body, often in the form of a flat disk, as in snails. See Illust. of Buccinum.
3. That which corresponds to the foot of a man or animal; as, the foot of a table; the foot of a stocking.
4. The lowest part or base; the ground part; the bottom, as of a mountain or column; also, the last of a row or series; the end or extremity, esp. if associated with inferiority; as, the foot of a hill; the foot of the procession; the foot of a class; the foot of the bed. And now at foot Of heaven's ascent they lift their feet. Milton.
5. Fundamental principle; basis; plan; — used only in the singular. Answer directly upon the foot of dry reason. Berkeley.
6. Recognized condition; rank; footing; — used only in the singular. [R.] As to his being on the foot of a servant. Walpole.
7. A measure of length equivalent to twelve inches; one third of a yard. See Yard.
Note: This measure is supposed to be taken from the length of a man's foot. It differs in length in different countries. In the United States and in England it is 304.8 millimeters.