midrib
Noun

midrib (plural midribs)

  1. (botany) The strengthened vein down the middle of a flower petal or simple leaf or leaflet.
    Synonyms: middle rib, midvein
  2. (botany) The continuation of the petiole of a pinnately compound leaf around which the leaflets attach.
    Synonyms: middle rib, rachis
Synonyms


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