The crossword solution for the term 'prefix with DYNAMICS' is AERO, which is a four-letter word. AERO is a prefix that is often used in combination with the word 'DYNAMICS' to refer to the study of the motion of air and other gases. It is also used to describe the science of flight and aerodynamics. In general, the term 'AERO DYNAMICS' is used to refer to the study of forces and the resulting motion of objects through the air or in a vacuum.