noun.
The property or an instance of being concurrent; something that happens at the sametime as something else.
noun.
a property of systems where several processes execute at the same time
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
acting together, as agents or circumstances or events
noun.
agreement of results or opinions
Word Usage
"In 1986, Ugandan health officials had not heard of "long-term concurrency" and Professor Morris had not constructed the computer models that traced the transmission of HIV."