Definition of quinion in US English:

quinion

noun

  • Bookbinding. = quinternion.

Origin

Late 18th century (in an earlier sense). From post-classical Latin quinion-, quinio group of five (early 3rd cent. in Tertullian) from classical Latin quīnī five each + -ō.

Pronunciation

quinion

/ˈkwɪnɪən/