Definition of hydrangea
: any of a genus (Hydrangea) of mostly shrubs having opposite leaves and showy clusters of usually sterile white, pink, or bluish flowers that is either placed in the saxifrage family or the hydrangea family (Hydrangeaceae)
Recent Examples of hydrangea from the Web
Avid gardeners in their 70s, the Halls turned an acre of weeds outside their back door into a stunning forest garden, brimming with azaleas, rhododendrons, hydrangeas and other shade-loving shrubs.
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Medical Definition of hydrangea
1 capitalized : a large genus of widely distributed shrubs and one woody vine (family Saxifragaceae) with opposite leaves and showy clusters of usually sterile white, pink, or bluish flowers
2: any plant of the genus Hydrangea
3: the dried rhizome and roots of the wild plant of the genus Hydrangea (H. arborescens) formerly used in pharmacy as a diuretic
Learn More about hydrangea
Britannica.com: Encyclopedia article about hydrangea
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