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Webster 1913 Edition
Margosa
Mar-go′sa
,Noun.
 [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. The 
margosa 
oil . . . is a most valuable balsam for wounds, having a peculiar smell which prevents the attacks of flies. Sir S. Baker.