pith

pith is a   Noun

Definition:

[1] The soft spongy substance in the center of the stems of many plants and trees, especially those of the dicotyledonous or exogenous classes. It consists of cellular tissue.

[2] Hence: The which contains the strength of life; the vital or essential part; concentrated force; vigor; strength; importance; as, the speech lacked pith. Enterprises of great pith and moment. Shak. Pith paper. Same as Rice paper, under Rice.

Synonyms: