1. Occurring once in five years, or at the end of every five years; also, lasting five years. A quinquennial event

Encyclopedia: Quinquennial

• saxifrage family
• saxist
• saxitoxin
• Saxo Grammaticus
• Saxon
• Saxon blue
• family Ramphastidae
• family Ranidae
• family Ranunculaceae
• family Rapateaceae
• family Raphidae
• family Raphidiidae
• family Recurvirostridae
• family Reduviidae
• family Regalecidae
• family relationship
• family Resedaceae
• family Rhamnaceae
• family Rheidae
• family Rhincodontidae
• family Rhinobatidae
• family Rhinocerotidae
• family Rhinolophidae
• family Rhinotermitidae
• family Rhiptoglossa