Perfectibilian
Pronunciation : Per*fect`i*bil"i*an
Part of Speech : n.
Definition : Defn: A perfectionist. [R.] Ed. Rev.
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder