quadrennium

n.

四年；

复数：quadrenniaquadrenniums

CONSUMER BEHAVIOR: A Quadrennium
Zen/Ch'an: Catholic Dialogue Opens New Quadrennium
IUCN/SS Canid Specialist Group: 2000-2004 quadrennium report
Progress in physical activity over the Olympic quadrennium
Trends and opportunities facing ICN over the coming quadrennium
Measurement of Astragaloside Content in Quadrennium Astragalus with HPLC Method
UK National Report for the Quadrennium 1979-1983 to the International Association of Geomagnetism and Aeronomy 
[Tuberculosis in Bergamo Province. Statistical estimates for the quadrennium 1984-1987]
Increase in intraoral height of selected permanent teeth during the quadrennium following gingival emergence
Democracy in Action: Office-Holding in Fourth Century Athens. Pytheas of Alopece and the Panathenaic Quadrennium