(metrology) Symbol for the attokelvin, an SI unit of thermodynamic temperature equal to 10−18 kelvins.
Other Word Forms of Ak
Origin of Ak
Russian A(vtomat) K(alashnikova) automatic gun of Kalashnikov after Viktor Timofeevich Kalashnikov (born 1919), Soviet arms engineer
From American Heritage Dictionary of the English Language, 5th Edition
From Russian АК-47 (AK-47), shortened from автомат Калашникова 1947 (avtomát Kalášnikova 1947), from the name of the designer Mikhail Kalashnikov.