Nephrolepis exaltata bostoniensis neph·ro·le·pisexaltatabostoniensis uncommon noun 1. a sword fern with arching or drooping pinnate fronds; a popular houseplant SynonymsBoston fernNephrolepis exaltataNephrolepis exaltata bostoniensis Related words Broader terms sword fern WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
