primary meristem

noun Botany.
primary tissue derived from an apical meristem. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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American Heritage
Science Dictionary
primary meristem  
One of the three meristems in vascular plants (the procambium, protoderm, or ground meristem) derived from an apical meristem. Compare lateral meristem. See more at apical meristem, primary growth.

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