regrowth 

The little tiny pubes that spike up a few days after you shave down there.

I just shaved and I already got some regrowth!

regrowth by Craig4662 October 20, 2006

re-growth at the roots 

It is an expression in women's world, that describes the growing of hair roots showing the natural color of the hair against the dyed one.

Her hair dye is always perfect, not a single sign of re-growth at the roots. Had I not known her since she was a kid I would have thought her a genetic blonde.

re-growth at the roots by Maha. E May 13, 2008