Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
Related to oleander: yellow oleander
A poisonous Eurasian evergreen shrub (Nerium oleander) with narrow leathery leaves, widely cultivated for its showy fragrant white, rose, or purple flowers. Also called rosebay.
[Medieval Latin, probably alteration (influenced by Latin olea, olive) of Late Latin lorandrum, rhododendron, alteration (probably influenced by Latin laurea, lōrea, laurel, because of its similar-shaped leaves) of Late Latin rodandrum, from Latin rhododendron; see rhododendron.]
(Plants) a poisonous evergreen Mediterranean apocynaceous shrub or tree, Nerium oleander, with fragrant white, pink, or purple flowers. Also called: rosebay
[C16: from Medieval Latin, variant of arodandrum, perhaps from Latin rhododendron]
o•le•an•der(ˈoʊ liˌæn dər, ˌoʊ liˈæn-)
an ornamental, poisonous evergreen shrub, Nerium oleander, of the dogbane family, native to S Eurasia, having showy clusters of pink, red, or white flowers.
[1540–50; < Medieval Latin oleander, oliandrum, obscurely akin to Late Latin laurandrum]
Switch to new thesaurus
|Noun||1.||oleander - an ornamental but poisonous flowering shrub having narrow evergreen leaves and clusters of fragrant white to pink or red flowers: native to East Indies but widely cultivated in warm regions|
poisonous plant - a plant that when touched or ingested in sufficient quantity can be harmful or fatal to an organism