WordNet (r) 3.0 (2006):

red gum
    n 1: reddish-brown dried gummy exudation from any of several
         trees of the genus Eucalyptus especially Eucalyptus
         camaldulensis [syn: eucalyptus gum, eucalyptus kino,
         red gum]
    2: very large red gum tree [syn: red gum, marri, Eucalyptus
       calophylla]
    3: red gum tree of Tasmania [syn: red gum, peppermint,
       peppermint gum, Eucalyptus amygdalina]
    4: reddish-brown wood and lumber from heartwood of the sweet gum
       tree used to make furniture [syn: sweet gum, satin
       walnut, hazelwood, red gum]
    5: a North American tree of the genus Liquidambar having prickly
       spherical fruit clusters and fragrant sap [syn: sweet gum,
       sweet gum tree, bilsted, red gum, American sweet gum,
       Liquidambar styraciflua]