Definition of "quadrennially" []

• Every four years. (adverb)

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• "As nearly as I could find out this morning, this is to be done quadrennially, so this seems to be the first one conducted by the US (i.e., the Bush administration wasn't obligated to do one)."
• "Department of Education's Institute of Education Sciences (IES), says it is bowing out of 2008 TIMSSA, an advanced version of the Trends in International Mathematics and Science Study given quadrennially to younger students, because it can't fit the $5 million to $10 million price tag into its flat budget."
• ""Don't waste your vote," they whine in unison -- as if our votes are not quadrennially wasted on those marvelous occasions when they are actually counted and recorded."