0 present participle of quadruple
1 to become four times as big, or to multiply a number or amount by four:
Thus, the third term, slow(c), must be tested four times, unnecessarily quadrupling the time spent processing that term.
The gross extra cost of doubling and quadrupling the retirement pension age addition would be £28 million and £84 million respectively.
The industry has been set the task of quadrupling its pre-natural gas sales by the middle of this decade.
Doubling, trebling or quadrupling the fines will not solve the problem but it will impose a tax that, ultimately, passengers will have to pay.
We are not dealing with a figure of some 300,000 unemployed, as we were until the quadrupling of the price of oil in 1974.
The doubling or quadrupling of waiting lists is not acceptable, and breaking a promise to end waiting lists is not acceptable.
That would be foolish, because no one can predict that there will not be a quadrupling of oil prices, as happened in 1972 and 1973.
In this clause there is more than a doubling of the minimum period and more than a quadrupling of the full period.