snowberry

1. Any of various shrubs of the genus Symphoricarpos, especially S. albus of North America, having small pinkish flowers and white berries.
2. Any of various tropical American shrubs or vines of the genus Chiococca, having white globular fruit and small yellow or white flowers clustered in lateral racemes.

(click to enlarge)
Snowberry (Symphoricarpos rivularis) (credit: Sven Samelius)

Any of about 18 species of low shrubs that belong to the genus Symphoricarpos of the honeysuckle family. All are native to North America, except for one species in central China. All have bell-shaped, pinkish or white flowers and snow-white berries. The best-known ornamental species are S. albus, a shrub 3 ft (1 m) high, with delicate stems, oval leaves, and large, pulpy, white berries, and S. rivularis, slightly larger, with elliptical leaves and a profusion of berries. Creeping snowberry is a plant of the genus Gaultheria (heath family).

For more information on snowberry, visit Britannica.com.

The noun has one meaning:

Meaning #1: deciduous shrub of western North America having spikes of pink flowers followed by round white berries
  Synonyms: common snowberry, waxberry, Symphoricarpos alba