Quin-quĕn'ni-al, a.
a. [Lat. quinquennalis and quinquennis, from quinque, five, and annus, year; Fr., Pr., & Pg. quinquennal, Sp. quinquenal, It. quinquennale.] Occurring once in five years, or lasting five years.
a. [Lat. quinquennalis and quinquennis, from quinque, five, and annus, year; Fr., Pr., & Pg. quinquennal, Sp. quinquenal, It. quinquennale.] Occurring once in five years, or lasting five years.