n.
Pronunciation: h ī - ' dr ā n-j ə
Function: noun
Etymology: New Latin, from hydr- + Greek angeion vessel ― more at ANGI-
Date: circa 1753
: 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)