Definition of Anagrammatism

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practice of making anagrams
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Anagrammatism Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(n.)
The act or practice of making anagrams.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
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anagrammatism
\an`a*gram"ma*tism\ (&?;), n. [gr. &?;: cf. f. anagrammatisme.] the act or practice of making anagrams. amden.