oleaster Meaning, Definition & Usage

  1. noun any of several shrubs of the genus Elaeagnus having silver-white twigs and yellow flowers followed by olivelike fruits

WordNet

O`le*as"ter noun
Etymology
L., fr. olea olive tree. See Olive, Oil.
Definitions
  1. (Bot.) (a) The wild olive tree (Olea Europea, var. sylvestris). (b) Any species of the genus Elæagus. See Eleagnus. The small silvery berries of the common species (Elæagnus hortensis) are called Trebizond dates, and are made into cakes by the Arabs.

Webster 1913