Neem tree  Bot. An Asiatic name for Melia Azadirachta, and Melia Azedarach. See Margosa.
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  neem tree
       n : large semi-evergreen tree of the East Indies; trunk exudes a
           tenacious gum; bitter bark used as a tonic; seeds yield
           an aromatic oil; sometimes placed in genus Melia [syn: neem,
            nim tree, margosa, arishth, Azadirachta indica,
           Melia Azadirachta]