WordReference Random House Unabridged Dictionary of American English © 2026
o•le•as•ter
(ō′lē as′tər),USA pronunciation n.
- Plant Biologyan ornamental shrub or small tree, Elaeagnus angustifolia, of Eurasia, having fragrant yellow flowers and an olivelike fruit. Also called Russian olive.
- Latin: wild olive tree, derivative of olea olive
- Middle English bef. 1000
'oleaster' also found in these entries (note: many are not synonyms or translations):