vicennial /vī-senˈyəl/

1. Lasting, or coming at the end of, twenty years
2. Occurring every twenty years

• deskilling
• deskillings
• deskills
• desking
• deskings
• desk jockey
• desks
• desktop
• desktop comput
• desktop publishing
• desktops
• desk-work
• desman
• desmans
• desmid
• desmids
• desmine
• desmines
• desmodium
• desmodiums
• desmodromic
• desmoid
• desmoids
• Desmond
• desmosomal