ˈkad.əchə̇n, -əsh-, -ək- noun
( -s )
Etymology: German katechin, from katechu catechu (from English) + -in — more at catechu
1. : a white crystalline phenol-alcohol C 15 H 14 O 6 related chemically to the flavones and found as the dextrorotatory form in catechu — called also catechol
2. : pyrocatechol