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zonal geranium

noun
  1. a widely cultivated plant, Pelargonium hortorum, having white, pink, or red flowers and rounded leaves that are sometimes banded or blotched with contrasting colors.
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Origin of zonal geranium

First recorded in 1905–10
Also called fish geranium.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018