from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Existing or resulting in essence or effect though not in actual fact, form, or name: the virtual extinction of the buffalo.
- adj. Existing in the mind, especially as a product of the imagination. Used in literary criticism of a text.
- adj. Computer Science Created, simulated, or carried on by means of a computer or computer network: virtual conversations in a chatroom.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. In effect or essence, if not in fact or reality; imitated, simulated.
- adj. Nearly, almost. (A relatively recent corruption of meaning, attributed to misuse in advertising and media.)
- adj. Of something that is simulated in a computer or on-line.
- adj. In object-oriented programming, capable of being overridden with a different implementation in a subclass.
- adj. Related to technology.
- n. In C++, a virtual member function of a class.
from the GNU version of the Collaborative International Dictionary of English
- adj. Having the power of acting or of invisible efficacy without the agency of the material or sensible part; potential; energizing.
- adj. Being in essence or effect, not in fact.
from The Century Dictionary and Cyclopedia
- In electricity, in alternating currents, effective: said of the value which is to be used in computing energy or power relations of a current.
- In synchronous alternating-current machines, the induced electromotive force corresponding to the resultant of the magnetomotive forces of field-flux and armature-flux.
- Existing in effect, power, or virtue, but not actually: opposed to real, actual, formal, immediate, literal.
- Pertaining to a real force or virtue; potential.
- In mech., as usually understood, possible and infinitesimal: but this meaning seems to have arisen from a misunderstanding of the original phrase virtual velocity, first used by John Bernoulli, January 26th, 1717, which was not clearly defined as a volocity at all, but rather as an infinitesimal displacement of the point of application of a force resolved in the direction of that force.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. existing in essence or effect though not in actual fact
- adj. being actually such in almost every respect
Middle English virtuall, effective, from Medieval Latin virtuālis, from Latin virtūs, excellence; see virtue.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin virtuālis, from virtus ("virtue"). (Wiktionary)