decennial

The volumes of the decennial censuses contain the statistical records of the nation's growth and development.

The figures fluctuate more severely than these decennial averages show, and the progress has not been one of uniform increase.

In 1851 Lament, a Scotchman at Munich, found a decennial period in the daily range of magnetic declination.

Australian and Canadian observations both showed the decennial period in all three elements.

At first the settlement was called decennial, but in 1793 it was declared permanent for ever.