The Collaborative International Dictionary
Meliaceous
Meliaceous \Me`li*a"ceous\, a. (Bot.) Pertaining to a natural order ( Meliac[ae]) of plants of which the genus Melia is the type. It includes the mahogany and the Spanish cedar.
Wiktionary
meliaceous
a. (context botany English) Of or relating to the Meliaceae, a family of plants of which the genus ''Melia'' is the type.