Chronic bronchitis isnât contagious, but itâs a serious health problem that requires a doctorâs care. Acute, which can last for 1 to 3 weeks. Itâs usually caused by cold or flu viruses.
body movement, motion of all or part of the body, especially at a joint or joints. Body movements include abduction, adduction, extension, flexion, rotation and circumduction.
Definition of rotation, a movement. The term rotation may used to describe movement at a joint e.g. how two body parts move in relation to each other. This or related words may also be used to describe the action of certain muscles that cause such movement.