Possible Definitions:
1. Delta (n.) A tract of land shaped like the letter delta (/), especially when the land is alluvial and inclosed between two or more mouths of a river; as, the delta of the Ganges, of the Nile, or of the Mississippi.
2. Delta (n.) The fourth letter of the Greek alphabet (/ /), answering to D.
3. Delta (n.) an object having the shape of the capital /.
4. Delta (n.) The closed figure produced by connecting three coils or circuits successively, end for end, esp. in a three-phase system; -- often used attributively, as delta winding, delta connection (which see), etc.
