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noun
small evergreen ferns: lipferns; in some classifications placed in family Polypodiaceae or Adiantaceae
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lip fern
any of various terrestrial ferns of the genus Cheilanthes; cosmopolitan in arid and semiarid temperate or tropical regions
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lipfern
any of various terrestrial ferns of the genus Cheilanthes; cosmopolitan in arid and semiarid temperate or tropical regions