vicennial. The American Heritage® Dictionary of the English Language: Fourth Edition. 2000.

The American Heritage^® Dictionary of the English Language: Fourth Edition. 2000.

vicennial

SYLLABICATION:	vi·cen·ni·al
PRONUNCIATION:	v-sn-l
ADJECTIVE:	1. Happening once every 20 years. 2. Existing or lasting for 20 years.
ETYMOLOGY:	From Late Latin vcennium, period of twenty years : Latin vcins, twenty times (from vgint, twenty; see vicenary) + Latin annus, year; see at- in Appendix I.


The American Heritage^® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved.