Other forms: taproots
A taproot is the single thick root that drives straight down. A deep taproot.
It reaches water that shallow roots cannot, which is why a dandelion survives any drought. A taproot broken during transplanting usually kills the plant.
1nountaprootThe single thick root that drives straight down.
“The taproot went down more than a metre in that sandy soil.”
taproot is a root.
Tap plus root; the spelling was tap-root through the nineteenth century.
From tap + root. The oldest use (by Philemon Holland) is spaced as tap root. In the 18th and 19th centuries the standard spelling was tap-root.
Etymology from Wiktionary, CC BY-SA