ar·um /ˈærəm, ˈɛr-/
 海芋植物
 A·rum, n.  A genus of plants found in central Europe and about the Mediterranean, having flowers on a spadix inclosed in a spathe. The cuckoopint of the English is an example.
    Our common arums -- the lords and ladies of village children.   --Lubbock.
 Note: ☞ The American “Jack in the pulpit” is now separated from the genus Arum.
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 arum
      n 1: starch resembling sago that is obtained from cuckoopint root
      2: any plant of the family Araceae; have small flowers massed
         on a spadix surrounded by a large spathe [syn: aroid]