1. A limb or member of an animal used for supporting the body, and in running, climbing, and swimming; especially, that part of the limb between the knee and foot.
2. That which resembles a leg in form or use; especially, any long and slender support on which any object rests; as, the leg of a table; the leg of pair of compasses or dividers.
3. The part of any article of clothing which covers the leg; as, the leg of a stocking or of a pair of trousers.
4. A bow, especially. In the phrase to make a leg; probably from drawing the leg backward in bowing. He that will give a cap and make a leg in thanks for a favor he never received. (Fuller)
5. A disreputable sporting character; a blackleg.
6. The course and distance made by a vessel on one tack or between tacks.
7. An extension of the boiler downward, in the form of a narrow space between vertical plates, sometimes nearly surrounding the furnace and ash pit, and serving to support the boiler; called also water leg.
8. The case containing the lower part of the belt which carries the buckets.
9. A fielder whose position is on the outside, a little in rear of the batter.
(Science: geometry) a good leg, to have speed. To stand on one’s own legs, to support one’s self; to be independent.
Origin: Icel. Leggr; akin to dan. Laeg calf of the leg, Sw.