#initial-load-header-loader { visibility: hidden!important; } #initial-load-content { visibility: visible!important; } .expandable .expandable-control { display: none!important; } .expandable .expandable-content { display: block!important; visibility: visible!important; max-height: none!important; height: auto!important; }

quatercentennial

[kwot-er-sen-ten-ee-uh l]

adjective

pertaining to or marking a period of 400 years.

Origin of quatercentennial

1960–65; < Latin quater four times + centennial

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019