Go into the photo stream album, select the photo you want to delete and click on the trash icon. It should give you a message indicating that the file will be deleted from the photo stream album on all of your synced devices:
Webster Dictionary(0.00 / 0 votes)Rate this definition: Epiphyllum(noun) 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.
any terrestrial or epiphytic plant of the family Orchidaceae, of temperate and tropical regions, having usually showy flowers. Compare orchid family. 2. the flower of any of these plants. 3. a bluish to reddish purple.