n. The quality or state of being simultaneous; simultaneousness.
n. More than one complete musical texture occurring at the same time. This first appeared in the music of Charles Ives, and is common in the music of Conlon Nancarrow, and others.
the GNU version of the Collaborative International Dictionary of English
n. The quality or state of being simultaneous; simultaneousness.
The Century Dictionary and Cyclopedia
n. The state or fact of being simultaneous.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. happening or existing or done at the same time
Word Usage
"Although I think the point I made about the illusion of simultaneity is obvious, here is a simple test which can be observed, and shows that the possibility of illusion cannot be ruled out."