• Webster's Revised Unabridged Dictionary
    • n Plerome (Bot) The central column of parenchyma in a growing stem or root.
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Century Dictionary and Cyclopedia
    • n plerome In gnosticism, same as pleroma.
    • n plerome In botany, the cylinder or shaft of nascent fibrovascular elements at the growing-points of the axis of plants.
    • n plerome In zoology, the mesodermic tissue which fills out the space between the gut and the external epithelium in the body of a tunicate.
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Webster's Revised Unabridged Dictionary
Gr. that which fills up, fr. to fill