a perennial Mexican agave plant, Polianthes tuberosa, having a tuberous root and spikes of white fragrant lily-like flowers
adjective (ˈtjuːbəˌrəʊs)
2. a variant of tuberous
Word origin
C17: from Latin tūberōsus full of lumps; referring to its root
tuberose in American English1
(ˈtubˌroʊz; ˈtjubˌroʊz)
noun
a perennial Mexican plant (Polianthes tuberosa) of the agave family, growing from a tuber or bulb and having white, sweet-scented flowers borne in racemes