from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The real nature of a thing; the essence.
- n. A hairsplitting distinction; a quibble.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The essence or inherent nature of a person or thing.
- n. A trifle; a nicety or quibble
- n. An eccentricity; an odd feature
from the GNU version of the Collaborative International Dictionary of English
- n. The essence, nature, or distinctive peculiarity, of a thing; that which answers the question, Quid est? or, What is it?
- n. A trifling nicety; a cavil; a quibble.
from The Century Dictionary and Cyclopedia
- n. In scholastic philos., that which distinguishes a thing from other things, and makes it what it is, and not another; substantial form; nature.
- n. A trifling nicety; a cavil; a quirk or quibble.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an evasion of the point of an argument by raising irrelevant distinctions or objections
- n. the essence that makes something the kind of thing it is and makes it different from any other
Medieval Latin quidditās, from Latin quid, what; see kwo- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle French quiddité, and its source, Late Latin quidditas, from Latin quid + -itas. (Wiktionary)