Delta
Water
An alluvial deposit, often in the shape of the Greek letter "delta", which is formed where a stream drops its debris load on entering a body of quieter water.
- — Service Hydrologist Reference Manual Glossary of Hydrologic Terms retrieved 2014-06-01
Personal Finance
The relationship between an option's price and the price of the underlying stock or futures contract is called its delta.
If the delta is 1, for example, the relationship of the prices is 1 to 1. That means there's a $1 change in the option price for every $1 change in the price of the investment.
With a call option, an increase in the price of an underlying investment typically results in an increase in the price of the option. An increase in a put option's price is usually triggered by a decrease in the price of the underlying investment, since investors buy put options expecting stock prices to fall.
Science› Energy› Renewable Energy
Solar Energy
An alluvial deposit at the mouth of a river, usually triangular in shape. An area formed from the deposition of sediments at the mouth of a river.
- — Solar Energy Development PEIS Glossary retrieved 2014-06-15
Weather
In hydrologic terms, an alluvial deposit, often in the shape of the Greek letter "delta", which is formed where a stream drops its debris load on entering a body of quieter water.