The Collaborative International Dictionary
Anacardiaceous
Anacardiaceous \An`a*car"di*a"ceous\, a. (Bot.) Belonging to, or resembling, a family, or order, of plants of which the cashew tree is the type, and the species of sumac are well known examples.
Wiktionary
anacardiaceous
a. (context botany English) Of or relating to the Anacardiaceae, the cashew or sumac family.