Origin: Greek prefix syn-
Synovial fluid has 2 different meanings across 1 category:
viscid lubricating fluid secreted by the membrane lining joints and tendon sheaths etc.
A transparent, viscous, non-Newtonian lubricating fluid which is found in the cavities of synovial joints or bursae and secreted by the synovial membrane; its main purpose is to reduce friction between the articular cartilage of synovial joints during movement.