Pith - Definition
pith
n 1: soft spongelike central cylinder of the stems of most
flowering plants
2: the choicest or most essential or most vital part of some
idea or experience; "the gist of the prosecutor's argument";
"the heart and soul of the Republican Party"; "the nub of the
story" [syn: kernel, substance, core, center,
centre, essence, gist, heart, heart and soul,
inwardness, marrow, meat, nub, pith, sum, nitty-
gritty]
v 1: remove the pith from (a plant)