Definition of "coriaceous"

This species is similar to E. vagans Wallich in the texture of the leaves, which are more thickly coriaceous and have fewer crenulations on margin; the large globose capsules are white spotted.

1997, JinShuang Ma, "New Species of Euonymus (Celastraceae) from East and South Asia", Harvard Papers in Botany 10: 93-111, Abstract.