姜黄根

[ noun ]
perennial herb of northeastern United States having a thick knotted yellow rootstock and large rounded leaves
<noun.plant>

Turmeric \Tur"mer*ic\, a. (Chem.)
Of or pertaining to turmeric; resembling, or obtained from,
turmeric; specif., designating an acid obtained by the
oxidation of turmerol.

{Turmeric paper} (Chem.), paper impregnated with turmeric and
used as a test for alkaline substances, by which it is
changed from yellow to brown.

{Turmeric root}. (Bot.)
(a) Bloodroot.
(b) Orangeroot.