green alder gree·nal·der uncommon noun 1. North American shrub with light green leaves and winged nuts Synonymsgreen alderAlnus veridis crispaAlnus crispa 2. shrub of mountainous areas of Europe Synonymsgreen alderAlnus veridis Related words Broader terms alder Parts Alnus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
