Definify.com
Webster 1913 Edition
Knotgrass
Knot′grassˊ
,Noun.
(Bot.)
(a)
a common weed with jointed stems
(Polygonum aviculare)
; knotweed. (b)
The dog grass. See under
Dog
. ☞ An infusion of
Polygonum aviculare
was once supposed to have the effect of stopping the growth of an animal, and hence it was called, as by Shakespeare, “hindering knotgrass.” We want a boy extremely for this function,
Kept under for a year with milk and
Kept under for a year with milk and
knotgrass
. Beau. & Fl.
Webster 1828 Edition
Knotgrass
KNOT'GRASS
,Noun.