A long, thin projection from a root epidermal cell that contains F-actin and tubulin, and a cell wall.
Source:
http://www.jstor.org/stable/4354264,
PO:0000256,
http://www.jstor.org/stable/4354264,
PO:0000256
Comment
This term is a child of 'cell projection' and not 'cell hair' to distinguish it from animal cell hairs, which are morphologically distinct.