from
The Collaborative International Dictionary of English v.0.48
Margosa \Mar*go"sa\, n. [Pg. amargoso bitter.] (Bot.)
A large tree of the genus {Melia} ({Melia Azadirachta}) found
in India. Its bark is bitter, and used as a tonic. A valuable
oil is expressed from its seeds, and a tenacious gum exudes
from its trunk. The {Melia Azedarach} is a much more showy
tree, and is cultivated in the Southern United States, where
it is known as {Pride of India}, {Pride of China}, or {bead
tree}. Various parts of the tree are considered anthelmintic.
[1913 Webster]
The margosa oil . . . is a most valuable balsam for
wounds, having a peculiar smell which prevents the
attacks of flies. --Sir S.
Baker.
[1913 Webster] Margravate