interactivity

inter-

A position which is in between two (or more) of the kind indicated by the root. · Mutually: the root verb or property has a symmetric and bidirectional relationship between the relevant parties.

也可拆解为

-ity

Used to form an uncountable noun from an adjective; especially, to form the noun referring to the state, property, or quality of conforming to the adjective's description. · Used to form a countable noun from an adjective, referring to someone or something that conforms to the adjective's description.