/del fin"ee euhm/ , n. , pl. delphiniums, delphinia /-ee euh/ .
any of numerous plants of the genus Delphinium, esp. any of various tall, cultivated species having usually blue, pink, or white flowers. Cf. larkspur .
[ 1655-65; delphínion larkspur, deriv. of delphís (s. delphin- ) DOLPHIN; so called from the shape of the nectary ]