An oleander is an evergreen tree or shrub that has white, pink, or purple flowers. Oleandersgrow in Mediterranean countries and in some parts of Asia and Australia.
oleander in British English
(ˌəʊlɪˈændə)
noun
a poisonous evergreen Mediterranean apocynaceous shrub or tree, Nerium oleander, with fragrant white, pink, or purple flowers
Also called: rosebay
Word origin
C16: from Medieval Latin, variant of arodandrum, perhaps from Latin rhododendron
oleander in American English
(ˈoʊliˌændər; ˌ oʊliˈændər)
noun
a poisonous evergreen shrub (Nerium oleander) of the dogbane family, with fragrant flowers of white, pink, or red and narrow, leathery leaves
Word origin
ML, earlier also lorandrum: altered < ? L rhododendron