from The American Heritage® Dictionary of the English Language, 4th Edition
- n. In the philosophy of Kant, an object as it is in itself independent of the mind, as opposed to a phenomenon. Also called thing-in-itself.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. In the philosophy of Immanuel Kant (1724-1804) and those whom he influenced, a thing as it is independent of any conceptualization or perception by the human mind; a thing-in-itself, postulated by practical reason but existing in a condition which is in principle unknowable and unexperienceable.
from the GNU version of the Collaborative International Dictionary of English
- n. The of itself unknown and unknowable rational object, or thing in itself, which is distinguished from the
phenomenonthrough which it is apprehended by the senses, and by which it is interpreted and understood; -- so used in the philosophy of Kant and his followers.
from The Century Dictionary and Cyclopedia
- n. In the Kantian philosophy:
- n. That which can be the object only of a purely intellectual intuition.
- n. Inexactly, a thing as it is apart from all thought; what remains of the object of thought after space, time, and all the categories of the understanding are abstracted from it; a thing in itself.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the intellectual conception of a thing as it is in itself, not as it is known through perception
German, from Greek nooumenon, from neuter present passive participle of noein, to perceive by thought, from nous, mind.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Ancient Greek νοούμενον (nooumenon), passive present participle of νοέω (noeō, "I know"). (Wiktionary)