ROSACEOUS
rose, roseate, rosaceous
(adjective) of something having a dusty purplish pink color; “the roseate glow of dawn”
rosaceous
(adjective) of or pertaining to or characteristic of plants of the family Rosaceae
Source: WordNet® 3.1
Etymology 1
Adjective
rosaceous (not comparable)
(botany) Of or pertaining to a rose, or a member of the Rosaceae family of plants.
Etymology 2
Adjective
rosaceous (comparative more rosaceous, superlative most rosaceous)
Resembling or characteristic of rosacea; rosy; reddish.
Source: Wiktionary
Ro*sa"ceous, a. Etym: [L. rosaceus, fr. rosa rose.]
1. (Bot.)
(a) Of or pertaining to a natural order of plants (Rosaceæ) of which
the rose is the type. It includes also the plums and cherries,
meadowsweet, brambles, the strawberry, the hawthorn, applies, pears,
service tress, and quinces.
(b) Like a rose in shape or appearance; as, a rosaceous corolla.
2. Of a pure purpish pink color.
Source: Webster’s Unabridged Dictionary 1913 Edition