Leu"co*plast (lU"kO*plast), Leu`co*plas"tid (-plas"tid), n. [Leuco- + Gr. pla`ssein to mold.] (Bot.)
One of certain very minute whitish or colorless granules occurring in the protoplasm of plants and supposed to be the nuclei around which starch granules will form.
© Webster 1913