interactive

In the fields of information science, communication, and industrial design, there is debate over the meaning of Interactivity. In the "contingency view" of interactivity, there are three levels: Noninteractive, when a message is not related to previous messages; Reactive, when a message is related only to one immediately previous message; and Interactive, when a message is related to a number of previous messages and to the relationship between them.
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adj. interacting, interactive

A network simulation language.
["Design and Implementation of a Pascal Based Interactive Network Simulation Language", R. Lakshmanan, PhD Thesis, Oakland U, Rochester MI 1983].
(1995-01-12)

<programming> A term describing a program whose input and output are interleaved, like a conversation, allowing the user's input to depend on earlier output from the same run.
The interaction with the user is usually conducted through either a text-based interface or a graphical user interface. Other kinds of interface, e.g. using speech recognition and/or speech synthesis, are also possible.
This is in contrast to batch processing where all the input is prepared before the program runs and so cannot depend on the program's output.
(1996-06-21)

Adjective
1. used especially of drugs or muscles that work together so the total effect is greater than the sum of the two (or more)
(synonym) synergistic
2. capable of acting on or influencing each other
(synonym) interactional
(similar) reciprocal, mutual