zonal geranium

noun

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

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