genus Hydrangea
— Noun
– English
~ type genus of Hydrangeaceae; large genus of shrubs and some trees and vines with white or pink or blue flower clusters; sometimes placed in family Saxifragaceae
genus Hydrastis
— Noun
– English
~ small genus of perennial herbs having rhizomes and palmate leaves and small solitary flowers; of northeastern United States and Japan
gamma hydroxybutyrate
— Noun
– English
~ a club drug available in liquid or powder form is taken orally (frequently combined with alcohol); used to incapacitate individuals for the commission of sexual assault and rape