heucheraPronunciation: /ˈhɔɪkərə, ˈhjuːk-/Definition of heuchera noun a North American plant with dark green round or heart-shaped leaves and slender stems of tiny flowers. Genus Heuchera, family Saxifragaceae: many species, in particular H. sanguinea, with many ornamental cultivars Origin:modern Latin, named after Johann H. von Heucher (1677–1747), German botanistheuchera in other Oxford dictionaries Definition of heuchera in the US English dictionary