'Snowball' definitions:

Definition of 'snowball'

From: WordNet
noun
Plant having heads of fragrant white trumpet-shaped flowers; grows in sandy arid regions [syn: snowball, sweet sand verbena, Abronia elliptica]
noun
Ball of ice cream covered with coconut and usually chocolate sauce
noun
Ball of crushed ice with fruit syrup
noun
Snow pressed into a ball for throwing (playfully)
verb
Increase or accumulate at a rapidly accelerating rate
verb
Throw snowballs at

Definition of 'Snowball'

From: GCIDE
  • Snowball \Snow"ball`\, n.
  • 1. A round mass of snow pressed or roller together, or anything resembling such a mass. [1913 Webster]
  • 2. (Bot.) The Guelder-rose. [1913 Webster]
  • 3. (Bot.) a shrub of the genus Viburnum, having large clusters of white flowers. [PJC]
  • Snowball bush or Snowball tree (Bot.), the Guelder-rose.
  • a snowball's chance in hell, [Colloq.] no chance; an infinitesimal chance. [1913 Webster +PJC]

Definition of 'Snowball'

From: GCIDE
  • Snowball \Snow"ball`\, v. t. [imp. & p. p. Snowballed; p. pr. & vb. n. Snowballing.] To pelt with snowballs; to throw snowballs at. [1913 Webster]

Definition of 'Snowball'

From: GCIDE
  • Snowball \Snow"ball`\, v. i.
  • 1. To throw snowballs. [1913 Webster]
  • 2. To increase in magnitude at an accelerating rate, achieving large proportions; -- by analogy with a snowball rolling down a steep hill, causing a large snow slide. [PJC]

Synonyms of 'snowball'

From: Moby Thesaurus