glade fern gla·de·fern uncommon noun 1. North American fern with narrow fronds on yellowish leafstalks Synonymssilvery spleenwortglade fernnarrow-leaved spleenwortAthyrium pycnocarponDiplazium pycnocarpon Related words Broader terms fern Parts Athyrium WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
