verb (used with or without object), quad·ru·pled, quad·ru·pling.
Related formsquad·ru·ple·ness, nounquad·ru·ply, adverb
Examples from the Web for quadrupled
One month later, the number of cases had quadrupled, with WHO showing more than 208 cases and 130 deaths.
One likely reason for their growth is rising oil prices, which have quadrupled since 2002.
Phone taps, as it happens, more than quadrupled between 2001 and 2008.
Since 1990, the state's Hispanic population has increased eight-fold, while the Asian-American population has quadrupled.
The number of deaths from these drugs has quadrupled over the last ten years.These Are The 5 Scary Health Threats The CDC Will Tackle In 2014|Brandy Zadrozny|December 16, 2013|DAILY BEAST
He also found that his pack had grown soggy and quadrupled in weight, tugging sullenly at his aching shoulders.
Deep in a hollow to the left were two mills instead of one, and the noise of ore-crunching rolls was quadrupled in volume.The Terms of Surrender|Louis Tracy
In the last fifty years the number of known fossil remains of invertebrated animals has been trebled or quadrupled.The Rise and Progress of Palaeontology|Thomas Henry Huxley
Let them be brought within half the distance, and then attractions and repulsions will both be quadrupled.
Whatever strictures may be laid upon careless readers in general may perhaps be quadrupled when applied to bad reading of novels.Talks on the study of literature.|Arlo Bates