Edema is the accumulation of fluid in bodily tissues or a body cavity. The word is derived from the Middle English word ydema, which comes from the Greek word for swelling..In people who suffer from this condition, the swelling is usually clearly visible.eeping the legs elevated may help treat leg edema. Pulmonary edema is usually caused by heart failure. Cutting back on salt may help relieve edema. Compression stockings may help prevent fluid from collecting in the lower extremities.
Key Characteristics of Hedge Funds. 1  Hedge funds utilize a variety of financial instruments to reduce risk, enhance returns and minimize the correlation with equity and bond markets. 2  Hedge funds vary enormously in terms of investment returns, volatility and risk. 3  Many hedge funds have the ability to deliver non-market correlated returns.
BREAKING DOWN 'Hedge'. An example of a hedge would be if you owned a stock, then sold a futures contract stating that you will sell your stock at a set price, therefore avoiding market fluctuations.Investors use this strategy when they are unsure of what the market will do.aking an investment to reduce the risk of adverse price movements in an asset. Normally, a hedge consists of taking an offsetting position in a related security, such as a futures contract.