The Collaborative International Dictionary
Oleaster \O`le*as"ter\, n. [L., fr. olea olive tree. See Olive, Oil.] (Bot.)
The wild olive tree ( Olea Europea, var. sylvestris).
Any species of the genus El[ae]agus. See Eleagnus. The small silvery berries of the common species ( El[ae]agnus hortensis) are called Trebizond dates, and are made into cakes by the Arabs.