say it: oh-lee-A-stur
oleaster is a noun meaning "any of several shrubs of the genus Elaeagnus having silver-white twigs and yellow flowers followed by olivelike fruits". It carries one recorded sense.
any of several shrubs of the genus Elaeagnus having silver-white twigs and yellow flowers followed by olivelike fruits
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for oleaster come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.