This, in his view, clearly showed that "race" was no longer a useful indicator of cultural superiority.

The Donchian channel is a useful indicator for seeing the volatility of a market price.

Figures can normally be broken down into age groups, average income and other useful indicators.

They are also a useful indicator for medical examiners when determining the cause of death.

But the survey results, however imperfect, are a useful indicator of a home's conditions, experts say.

Such poll readings are considered a rough but useful indicator of the political terrain on which individual candidates must fight.

However, the design can be a useful, if not a definitive, indicator of a rug's origins.

The most useful indicators of liquidity for these contracts are the trading volume and open interest.

On another, a useful and thoroughly authentic indicator of the contents.

U2's progress has been a useful indicator of Eighties mainstream tastes (white).