n. One who has a propensity for being displeased with anything that is not perfect or does not meet extremely high standards.
the GNU version of the Collaborative International Dictionary of English
n. One pretending to perfection; esp., one pretending to moral perfection; one who believes that persons may and do attain to moral perfection and sinlessness in this life.
The Century Dictionary and Cyclopedia
n. One who believes in any form of perfectionism.
n. Specifically [capitalized] A member of the Oneida Community. See community. Also called Bible Communist.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a person who is displeased by anything that does not meet very high standards
Word Usage
"My surgeon had a national reputation and was known as a perfectionist."