A delphinium is a garden plant which has a tall stem with blue flowers growing up it.
delphinium in British English
(dɛlˈfɪnɪəm)
nounWord forms: plural-iums or -ia (-ɪə)
any ranunculaceous plant of the genus Delphinium: many varieties are cultivated as garden plants for their spikes of blue, pink, or white spurred flowers
See also larkspur
Word origin
C17: New Latin, from Greek delphinion larkspur, from delphisdolphin, referring to the shape of the nectary
delphinium in American English
(dɛlˈfɪniəm)
noun
any of a genus (Delphinium) of plants of the buttercup family, bearing spikes of spurred, irregular flowers, usually blue, on tall stalks: several species are poisonous
Word origin
ModL < Gr delphinion, larkspur < Gr delphis, delphin, dolphin: from some resemblance of the nectary to a dolphin