the GNU version of the Collaborative International Dictionary of English
n. A radicle; a little root.
The Century Dictionary and Cyclopedia
n. A little root; a radicle; a root-fibril: specifically applied to the fine roots put forth by certain plants, by which they cling to their supports, as in Rhus Toxicodendron.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. small root or division of a root
Word Usage
"A tree that it takes both arms to encircle grew from a tiny rootlet."