rhubarb

noun

rhu·​barb ˈrü-ˌbärb 

1

a

: any of a genus (Rheum) of Asian plants of the buckwheat family having large leaves with thick petioles often used as food

also : the petioles of rhubarb

b

: the tart, succulent, usually pink or red petioles of rhubarb used especially in pies and preserves

2

: the dried rhizome and roots of any of various rhubarbs (such as Rheum officinale and R. palmatum) grown chiefly in temperate parts of China and used in folk medicine especially as a laxative, diuretic, and ulcer treatment

3

: a heated dispute or controversy

Synonyms of rhubarb

• quarrel
• dispute
• altercation
• fight
• controversy
• disagreement
• argument
• row
• cross fire

Examples of rhubarb in a Sentence

The coach got into a rhubarb with the umpire.

a basketball coach whose ranting rhubarbs with officials are the stuff of legend

Recent Examples on the Web

Additional stations feature breakfast pastries, chocolate eggs, strawberry rhubarb and brie, and a variety of desserts including mousse, shortcakes, tarts, cake pops, French macarons, brownies, carrot cake, and fruit. —Elaine Rewolinski, jsonline.com, 23 Mar. 2026

In the kitchen, that means a shift toward lighter vegetable-forward dishes that make the most of the season’s harvest, including asparagus, artichokes, rhubarb and peas. —Victoria Caruso, Washington Post, 21 Mar. 2026

Guests can also enjoy brunch cocktails including a citrus rhubarb mimosa, bloody mary with shrimp cocktail garnish, and tequila sour. —Imelda García, Dallas Morning News, 20 Mar. 2026

There’s also the on-site Gorse Bakery, which sells excellent sourdough, blackberry buns, and rhubarb danishes. —Issy Von Simson, Travel + Leisure, 10 Mar. 2026

Word History

Etymology

Middle English rubarbe, from Anglo-French reubarbe, from Medieval Latin reubarbarum, alteration of rha barbarum, literally, barbarian rhubarb

First Known Use

15th century, in the meaning defined at sense 1a

Rhymes for rhubarb

• aldicarb
• arb
• barb
• barbe
• garb

Kids Definition

rhubarb

noun

rhu·​barb ˈrü-ˌbärb 

1

: a plant related to buckwheat and having large green leaves with thick juicy pink or red stems that are used for food

2

: a heated dispute or argument

Medical Definition

rhubarb

noun

rhu·​barb ˈrü-ˌbärb 

1

: any of several plants of the genus Rheum having large leaves with thick succulent petioles often used as food

2

: the dried rhizome and roots of any of several rhubarbs (especially Rheum officinale and R. palmatum) grown in China and Tibet and used as a purgative and stomachic