snowball

(snōbôl′)

noun

  1. a mass of snow packed together into a ball
  2. ☆ any of various plants with snowball-like flowers; esp., a cultivated European cranberry bush (Viburnum opulus var. roseum) with spherical clusters of sterile, white or pinkish flowers

intransitive verb

  1. to increase or accumulate rapidly and uncontrollably, like a ball of snow rolling downhill
  2. to throw snowballs

transitive verb

  1. to throw snowballs at
  2. to cause to increase or accumulate rapidly

See snowball in American Heritage Dictionary 4

noun
  1. a. A mass of soft, wet snow packed into a ball that can be thrown, as in play.
    b. Chiefly Southern U.S. A cup of crushed or shaved ice flavored with colored syrup.
  2. Any of several plants having rounded clusters of white flowers, as the guelder rose and certain species of the arrowwood.
verb snow·balled, snow·ball·ing, snow·balls
verb, intransitive
  1. To grow rapidly in significance, importance, or size: problems that snowballed by the hour.
  2. To throw snowballs.
verb, transitive
  1. To cause to grow or increase rapidly.
  2. To throw snowballs at.

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