Meaning of quatercentenary

quat•er•cen•ten•ar•y

Pronunciation: (kwot"ur-sen-ten'u-rē, -sen'tn-er"ē esp. Brit. kwot"ur&wdspcsen-tē'nu-rē), [key]
— adj., n., pl. -ar•ies.
—n.
  1. a 400th aniversary or its celebration.
—adj.
  1. pertaining to or marking a period of 400 years; quatercentennial.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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