Aplant that requirestwoyears to complete its life-cycle,germinating andgrowing in its first year, then producing itsflowers andfruit in its second year, after which it usually dies.
An event that happens every two years.
1891, Sir George Chetwynd,Racing Reminiscences and Experiences of the Turf, page122:
The famousBiennial was won by Earl of Dartrey, a light, peacocky horse, who was, perhaps, better than he looked.
