adder's-tongue

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noun ad·der's-tongue \ ˈa-dərz-ˌtəŋ \

Definition of adder's-tongue

1 :any of a genus (Ophioglossum, family Ophioglossaceae) of small ferns having a spore-bearing stalk resembling a serpent's tongue

First Known Use of adder's-tongue

1548


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