Currently ruling; being the present controlling authority, as of a government or country.(phrase)
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Use "in power" in a sentence
"It has a built in power supply that provides 2 mA of current at +18 VDC compliance to operate either a 10 mV/g or 100 mV/g IEPE accelerometer."
"He was steadily growing in power as he inched into Parthian Media by exploiting the feuds in the Parthian court."
"Left fielder Roy White, second baseman Brian Doyle, and shortstop Bucky Dent, a significant drop-off in power and average from the top six Yankee batters, constituted the bottom third of the order."