. . . . . . . . . . . . . . . . . . "any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores" . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "Wordnet Synset 11566165-n" . . . . . . . . . . . . . . . . . . . . . . .