Definition of rhubarb in English:

rhubarb

Syllabification: rhu·barb
Pronunciation: /ˈro͞oˌbärb
 
/

noun

1The thick leaf stalks of a cultivated plant of the dock family, which are reddish or green and eaten as a fruit after cooking.
More example sentences
  • Don't, whatever you do, and I'm being one hundred per cent serious here, mix quadruple whiskies, cheeseburgers and re-heated rhubarb pie.
  • There would be rhubarb pie and buttermilk, flags flying and youngsters scampering, a parade, a pageant, and fireworks to light up the night sky.
  • Tom surveyed the table, eyes settling on rhubarb pie.
2The large-leaved Eurasian plant that produces rhubarb.
  • Rheum rhaponticum (or rhabarbarum), family Polygonaceae
More example sentences
  • Perennials, such as artichokes, asparagus and rhubarb are also sold in bare-root form.
  • As soon as the soil can be worked, plant bare-root asparagus, horseradish, Jerusalem artichokes, and rhubarb.
  • Unfolded flower buds of rhubarb are cooked in the same ways as elderberry flowers.
2.1Used in names of other plants of the sane genus as rhubarb, several of which are used medicinally, e.g., Chinese rhubarb.
More example sentences
  • Its common name is prickly rhubarb and it does indeed look like rhubarb gone ballistic.
  • Other common names include pestwurz, blatterdock, bog rhubarb, and butter-dock.
3 informal , chiefly British The noise made by a group of actors to give the impression of indistinct background conversation or to represent the noise of a crowd, especially by the random repetition of the word “rhubarb” with different intonations.
More example sentences
  • Suddenly stuck for words to say, we started saying mumble mumble mumble and rah rah rah and rhubarb rhubarb to each other, and being extra-animated in our facial expressions and gestures.
3.1North American informal A heated dispute: rhubarbs often broke out among these less than professional players
More example sentences
  • After all, Martin reasoned, such retaliation is a commonplace of baseball, with brushback rhubarbs happening almost weekly every season.
  • Still, it was just a run-of-the-mill rhubarb, barely worth comment, which is true of most such arguments between arbiters and managers or players.
  • An intense rhubarb developed which lasted 34 minutes.

Origin

late Middle English (denoting the rootstock of other plants of this genus used medicinally): from Old French reubarbe, from a shortening of medieval Latin rheubarbarum, alteration (by association with rheum 'rhubarb') of rhabarbarum 'foreign rhubarb', from Greek rha (also meaning 'rhubarb') + barbaros 'foreign'.

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