elaioplast

right|thumb|220px|The differentiation of Elaioplasts thumb|right|Illustration from Collegiate Dictionary, FA Brockhaus and IA Efron, circa 1905. Cell of very young leaf of Vanilla planifolia; E - elaioplasts; Л - the nucleus; Я - leucoplasts; B - vacuoles

Elaioplasts are one of the three possible forms of leucoplasts, sometimes broadly referred to as such. The main function of elaioplasts is synthesis and storage of fatty acids, terpenes, and other lipids, and they can be found in the embryonic leaves of certain plants, as well as the anthers of many flowering plants.