Response to change over time.

In systems theory, a system is said to be transient or in a transient state when a process variable or variables have been changed and the system has not yet reached a steady state.

Temporary inflammation of joint lining.

In nuclear physics, transient equilibrium is a situation in which equilibrium is reached by a parent-daughter radioactive isotope pair where the half-life of the daughter is shorter than the half-life of the parent.

Temporary loss of muscle function.

Temporary blockage, blood flow brain.