quasquicentennial

[ kwos-kwi-sen-ten-ee-uh l ]
/ ˌkwɒs kwɪ sɛnˈtɛn i əl /

adjective

pertaining to or marking a period of 125 years.

noun

a 125th anniversary.
a celebration marking such an anniversary.

Origin of quasquicentennial

quasqui- one and a quarter (pseudo-Latin, apparently qua(dri-) + (se)squi-) + centenial

Words nearby quasquicentennial

quasi-stellar radio source, quasicrystal, quasidominance, quasimodo, quasiparticle, quasquicentennial, quass, quassia, quassia family, quat., quater