[snoh-boo
sh] 
| 1. | any of several ornamental shrubs having a profusion of white flowers, as Ceanothus cordulatus, of the buckthorn family, native to western North America. |
| 2. | a shrub, Breynia disticha, of the spurge family, native to the South Sea Islands, having white, speckled leaves, inconspicuous, greenish flowers, and red fruit. |
| snow·bush (snō'bŏŏsh') n. A spiny shrub (Ceanothus cordulatus) of California and Oregon, having large clusters of small white flowers. |