intercurrent adjective 4noun 1forms 1 adjective4 •Coming between, temporally; intervening in time.As fatigue increases, the perception of the intercurrent excitation is retarded; an odor is perceived as exciting before it is perceived as a differentiated sensation […]. — 1913 •Simultaneous; occurring at the same time as, or during the period of, another condition.In intercurrent pneumonia, or such as occurs in the course of another disease, the absence of the characteristic expectoration, according to M. Andral, is noticed. — 1848 •Not belonging to any particular season. •(no longer used) Running between or among, in a physical sense; interlayered. noun1 •(no longer used, rare) Something intervening. formsintercurrents