epiphyllum Meaning, Definition & Usage
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noun any cactus of the genus Epiphyllum having flattened jointed irregularly branching stems and showy tubular flowers
orchid cactus.
WordNet
Ep`i*phyl"lum noun
Etymology
NL.Definitions
(Bot.) A genus of cactaceous plants having flattened, jointed stems, and petals united in a tube. The flowers are very showy, and several species are in cultivation.