Dynamic viscosity is a term used to describe the resistance of a fluid to flow under the influence of an external force. Synonyms for this term include fluidity, thickness, and consistency. Another similar term is kinematic viscosity which refers to the resistance of a fluid to flow when subjected to gravity. This term is often used in the context of oil and lubricants. Other synonyms for dynamic viscosity include shear viscosity, absolute viscosity, and Newtonian viscosity - which all deal with the same concept of fluid resistance. Understanding these terms is crucial in various fields such as aviation, engineering, and medical science where fluid dynamics play a vital role in their respective applications.