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WordNet-Online 
 
Noun athyrium has 1 sense 
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| athonished athos athristis athrocentric athrotaxis athrotaxis selaginoides athwart athyriaceae athyrium athyrium distentifolium athyrium filix-femina athyrium pycnocarpon athyrium thelypteroides atia aticates aticipation atiematics 
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