Word Study
taproot
CIDE DICTIONARY
taproot, n.
The root of a plant which penetrates the earth directly downward to a considerable depth without dividing. [1913 Webster]
THESAURUS
taproot
beginning, bulb, bulbil, commencement, conception, corm, derivation, genesis, grass roots, head, inception, origin, original, origination, provenience, radical, radicle, radix, rhizome, rise, root, rootstock, source, stem, stock, tap, tuber, tubercleFor further exploring for "taproot" in Webster Dictionary Online