mushroomnoun/ˈmʌʃˌɹuːm/

• 1

  Any of the fleshy fruiting bodies of fungi typically produced above ground on soil or on their food sources (such as decaying wood).

  • Some mushrooms are edible whereas others are poisonous, and sometimes they are difficult to tell apart.
  • Arabs consider the eating of mushrooms as an aphrodisiac aid.
• 2

  A fungus producing such fruiting bodies.

• 3

  Champignon or Agaricus bisporus, the mushroom species most commonly used in cooking.

• 4

  Any of the mushroom-shaped pegs in bar billiards.

• 5

  architectureA concrete column with a thickened portion at the top, used to support a slab.

• 6

  obsoleteOne who rises suddenly from a low condition in life; an upstart.

  • upstarts […]call in reproach mushrooms
• 7

  Something that grows very quickly or seems to appear suddenly.

  • The craze [hula hoops] began in the U.S.A., and in October the boom crossed the Atlantic and 40 firms sprang into being, some being overnight mushrooms.

mushroomadj/ˈmʌʃˌɹuːm/

• 1

  Having characteristics like those of a mushroom, for example in shape or appearance, speed of growth, or texture.

  • mushroom cloud

mushroomverb/ˈmʌʃˌɹuːm/

• 1

  To grow quickly to a large size or rapidly increase in scope or scale.

  • The town’s population mushroomed from 10,000 to 110,000 in five years.
  • In Beilu Village of Liucun Town in Yaodu District, Linfen, abnormal illnesses continued to emerge, as a result of clusters of highly-polluting enterprises mushrooming in the vicinity.
• 2

  To gather mushrooms.

  • We used to go mushrooming in the forest every weekend.
• 3

  To form the shape of a mushroom.

  • Excessive spot weld time may cause the electrode tips to mushroom, resulting in no focus of current and a weak weld.
• 4

  ballisticsengineeringgovernmentTo form the shape of a mushroom.

這個拼法也被記錄為下列字的變化形：

• mushroom cloud