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

• quarrel
• altercation
• dispute
• controversy
• fight
• disagreement
• argument
• row
• bicker

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

Expect squid ink tuile, risotto infused with langoustine bisque, pulled veal cheek, and a show-stopping dessert of sous-vide rhubarb and chocolate cremeux—finished with a warm Aperol. —Lewis Nunn, Forbes.com, 11 Sep. 2025

When fresh rhubarb is in season, use it to make this sweet strawberry dump cake. —Sarah Martens, Better Homes & Gardens, 31 Aug. 2025

Wine and supernova lovers can pair their Cyprus Hills visit with a bottle of either haskap, cherry or rhubarb, available at the nearby Cypress Hills Winery, Armstrong suggested. —Elizabeth Howell, Space.com, 20 Aug. 2025

Special waffles offered at various times of the year are peaches and cream strawberry, lemonade, and strawberry rhubarb. —Pamela McLoughlin, Hartford Courant, 19 Aug. 2025

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