Definition of quinquefoil in English:

quinquefoil

noun

rare
  • 1A cinquefoil (genus Potentilla), which typically has compound leaves of five leaflets. Now chiefly US and rare.

  • 2An ornamental design resembling this leaf; = "cinquefoil". rare.

adjective

rare
  • Resembling the quinquefoil leaf, quinquefoil-shaped.

Origin

Old English; earliest use found in Bald's Leechbook. From classical Latin quīnquefolium cinquefoil (the plant), in post-classical Latin also ornamental design resembling this leaf, use as noun of neuter of quīnquefolius having five leaves from quīnque- + folium leaf.

Pronunciation

quinquefoil

/ˈkwɪŋkwɪfɔɪl/