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.
orchid. 1  any terrestrial or epiphytic plant of the family Orchidaceae, of temperate and tropical regions, having usually showy flowers. 2  the flower of any of these plants. 3  a bluish to reddish purple.