triennial Synonyms

tercentennial tercentenary 3-membered yearly trisect trieterical tricennial third thallophyte tertiary tertian septennial secular quotidian 3rd time period every third year after second three-year sextennial biannual aquatic plant quinquennial quadrennial decennial daily centennial catamenial biweekly birthday bimonthly biennial bicentennial bicentenary annual anniversary angiosperm diurnal exotic fortnightly polycotyledon perennial octennial monthly monocotyl menstrual jubilee hydrophyte hourly hebdomadary