any aroid plant of the genus Colocasia, of tropical Asia and Polynesia, having very large heart-shaped leaves: grown for ornament and for their edible tubers
See also taro
2.
any of various cultivated begonias with large showy leaves
elephant's-ear in American English
(ˈɛləfəntsˌɪr)
noun
1.
any of several plants (genus Colocasia) of the arum family, esp. an ornamental (C. antiquorum) having enormous heart-shaped leaves
2.
any of various cultivated begonias with large, showy leaves