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1. Of or belonging to the rose family.
2. Resembling the flower of a rose.

[From Latin rosāceus, made of roses, from rosa, rose.]


1. (Botany) of, relating to, or belonging to the Rosaceae, a family of flowering plants typically having white, yellow, pink, or red five-petalled flowers. The family includes the rose, strawberry, blackberry, and many fruit trees such as apple, cherry, and plum
2. (Colours) of the colour rose; rose-coloured; rosy
[C18: from Latin rosāceus composed of roses, from rosa rose1]


(roʊˈzeɪ ʃəs)

1. belonging to the plant family Rosaceae. Compare rose family.
2. having a corolla of five broad petals, like that of a rose.
3. like a rose; roselike.
4. rose-colored; rosy.
[1725–35; < Latin rosāceus made of roses <ros(a) rose1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.rosaceous - of or pertaining to or characteristic of plants of the family Rosaceae
2.rosaceous - of something having a dusty purplish pink color; "the roseate glow of dawn"
chromatic - being or having or characterized by hue
References in periodicals archive ?
Plant of hardy rosaceous genus Geum, with yellow flowers (4,6) 15.
Effect of inhibitors on haemolymph phenoloxidase from rosaceous branch borer, Ospheranteria coerulescens (coleoptera: cerambycidae).
The suggestion is of a face like Hals' The Merry Drinker (1630), rosaceous, worn and worldly.