Definify.com
Webster 1913 Edition
Cactaceous
Cac-ta′ceous
,Adj.
 (Bot.) 
Belonging to, or like, the family of plants of which the prickly pear is a common example. 
Definition 2025
cactaceous
cactaceous
English
Adjective
cactaceous (not comparable)
- (botany) Belonging to, or like, the family of plants of which the prickly pear is a common example.