river gum ri·ver·gum uncommon noun 1. somewhat crooked red gum tree growing chiefly along rivers; has durable reddish lumber used in heavy construction Synonymsriver red gumriver gumEucalyptus camaldulensisEucalyptus rostrata Related words Broader terms eucalyptus Part of eucalyptus gum WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
