noun
: a widely distributed annual smartweed ( Polygonum hydropiper ) of moist soils having greenish flowers and extremely acrid peppery juice and formerly used in medicine for its irritant and stimulant properties
noun
: a widely distributed annual smartweed ( Polygonum hydropiper ) of moist soils having greenish flowers and extremely acrid peppery juice and formerly used in medicine for its irritant and stimulant properties
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012