\Ca*lum"ba\, n. [from kalumb, its native name in
Mozambique.] (Med.)
The root of a plant ({Jateorrhiza Calumba}, and probably
{Cocculus palmatus}), indigenous in Mozambique. It has an
unpleasantly bitter taste, and is used as a tonic and
antiseptic. [Written also {colombo}, {columbo}, and
{calombo}.]
{American calumba}, the {Frasera Carolinensis}, also called
   {American gentian}. Its root has been used in medicine as
   bitter tonic in place of calumba.