from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A plausible but fallacious argument.
- n. Deceptive or fallacious argumentation.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A flawed argument superficially correct in its reasoning, usually designed to deceive. An intentional fallacy.
from the GNU version of the Collaborative International Dictionary of English
- n. The doctrine or mode of reasoning practiced by a sophist; hence, any fallacy designed to deceive.
from The Century Dictionary and Cyclopedia
- n. A false argumentation devised for the exercise of one's ingenuity or for the purpose of deceit; sometimes, a logically false argumentation; a fallacy.
- n. Syn. A sophism is an argument known to be unsound by him who uses it; a paralogism is an unsound argument used without knowledge of its unsoundness. Paralogism is a strictly technical word of logic; sophism is not. Sophistry applies to reasoning as sophism to a single argument. See fallacy.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone
Middle English sophime, sophisme, from Old French sophime, from Latin sophisma, from Greek, from sophizesthai, to be subtle, from sophos, clever, wise.(American Heritage® Dictionary of the English Language, Fourth Edition)