GNU Collaborative International Dictionary of English

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1.       
   Dwale (?), n. [OE. dwale, dwole, deception, deadly nightshade, AS. dwala, dwola, error, doubt; akin to E. dull. See Dull, a.]
   1. (Bot.) The deadly nightshade (Atropa Belladonna), having stupefying qualities.
   
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   2. (Her.) The tincture sable or black when blazoned according to the fantastic system in which plants are substituted for the tinctures.
   
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   3. A sleeping potion; an opiate.  Chaucer.
   
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