Definition of "rhubarb" []

• Any of several plants of the genus Rheum, especially R. rhabarbarum, having long green or reddish acidic leafstalks that are edible when sweetened and cooked. Also called pie plant. (noun)
• The dried, bitter-tasting rhizome and roots of Rheum palmatum or R. officinale of eastern Asia, used as a laxative. (noun)
• Informal A quarrel, fight, or heated discussion. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "The name rhubarb comes from the Latin rhabarbarum meaning (depending on your viewpoint!) "root of the barbarians"."
• "In terms of journals I particularly enjoy — which here means journals that I review material from in rhubarb is susan — here’s a highly incomplete list."
• "It's a tough job that will involve collateral damage, but rhubarb is a survivor."