Synovium
WordNet
noun
(1) A thin membrane in synovial (freely moving) joints that lines the joint capsule and secretes synovial fluid
WiktionaryText
Etymology
From + , as synovial fluid resembles the white of an egg.
Noun
- The soft tissue which lines the non-cartilaginous surfaces within joints with cavities (synovial joints). It may emit a joint-lubricating fluid called synovial fluid or simply, synovia.