Leucoplast
Pronunciation : Leu"co*plast, Leu`co*plas"tid
Part of Speech : n.
Etymology : [Leuco- + Gr. (Bot.)
Definition : Defn: 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.
Source : Webster's Unabridged Dictionary, 1913