Word not found in any official scrabble dictionaries.
"Arion" Definition
noun
A genus of pulmonate gastropods, by some referred to the family Limacidæ and subfamily Arioninœ, but now generally considered as the type of a family Arionidœ, including several species of slugs, of which A. ater, the black slug, is a characteristic example.
Source: Century Dictionary
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