n.
Pronunciation: ' ka-t ə r- ˌ fo ̇ i(- ə )l, ' ka-tr ə -
Function: noun
Etymology: Middle English quaterfoil set of four leaves, from Anglo-French quatre + Middle English -foil (as in trefoil )
Date: 15th century
1 : a conventionalized representation of a flower with four petals or of a leaf with four leaflets
2 : a 4-lobed foliation in architecture
quatrefoil 2