triennially Definition

biannually, biennially, annually, yearly, semiannually, biyearly, termly, invigilate, indicatively, trieterical, triduan, anniversarily, bimestrial, trimonthly, bimester, bimensal, sexennially, calendar month, novennial, septennially, civil year, islamic calendar, annotinous, unit of time, consecutively, leap day, common year, cardinal number, islamic calendar month, julian calendar, synodically, cumulatively, trihoral, sabbatical year, lunar month, quinible, solar calendar, sidereal year, hebdomadally, tropical year, decemfid, ordinal number, proemptosis, thrice, hindu calendar month, plenarily, time unit, metemptosis, per annum, twice, umptieth, one after another, interlapse, lunar year, thereafter, overmarch, bimonthly, tripartible, periodically, bissextile year, semimonthly, sidereal day, successively, statarianly, septimole, horometry, hornotine, concurrently, synodic month, septempartite, trimembral, retrospectively, at one time, equidiurnal, dismarch, solar day, canonical hour, tripartient, uninterruptedly, per centum, gigayear, anomalistic year, bipartile, thryfallow, gregorian calendar month, equitemporaneous, perissad, gemot, heptamerous, sidereal time, regularly, triquadrantal, ante meridiem, irrevoluble, geometric series, astronomical year, quadripartitely, quinquefid, metely, triparted,