| Noun | 1. | Adenium - one species: succulent shrub or tree of tropical Africa and Arabia dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination Apocynaceae, dogbane family, family Apocynaceae - chiefly tropical trees or shrubs or herbs having milky juice and often showy flowers; many are sources of drugs Adenium multiflorum, Adenium obesum, desert rose, impala lily, kudu lily, mock azalia - South African shrub having a swollen succulent stem and bearing showy pink and white flowers after the leaves fall; popular as an ornamental in tropics |