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nouncosmopolitan genus of ferns: maidenhair ferns; in some classification systems placed in family Polypodiaceae or Adiantaceae
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Definition that contains adiantum
- maidenhair fern any of various small to large terrestrial ferns of the genus Adiantum having delicate palmately branched fronds
- maidenhair any of various small to large terrestrial ferns of the genus Adiantum having delicate palmately branched fronds