1. Shaped in the form of the black trefoil or clover leaf on some playing cards 
2. Shaped in the form of a club that is larger at one end

See also: formed

• xvii
• xviii
• xx
• xxi
• xxii
• xxiii
• xxiv
• xxix
• xxv
• xxvi
• xxvii
• xxviii
• xxx
• xxxi
• xxxii
• xxxiii
• xxxiv
• xxxv
• xxxvi
• xxxvii
• xxxviii
• XXY
• XXY-syndrome
• XY
• xylan