Rosaceae + -ous
rosaceous (not comparable)
- (botany) Of or pertaining to a rose, or a member of the Rosaceae family of plants.
rosacea + -ous
rosaceous (comparative more rosaceous, superlative most rosaceous)
- Resembling or characteristic of rosacea; rosy; reddish.
- 1976, Ronald Marks, Common facial dermatoses (page 9)
- In cold weather rosaceous cheeks often tend to become mauvish and take on a cyanotic tinge.