- oleaster - any of several shrubs of the genus Elaeagnus having silver-white twigs and yellow flowers followed by olivelike fruits
--1 is a kind of shrub, bush
--1 is a member of Elaeagnus, genus Elaeagnus
--1 has particulars:wild olive, Elaeagnus latifolia; silverberry, silver berry, silverbush, silver-bush, Elaeagnus commutata; Russian olive, silver berry, Elaeagnus augustifolia