Synovial adj. (Anat.) Of or pertaining to synovia; secreting synovia.
Synovial capsule, a closed sac of synovial membrane situated between the articular surfaces at diarthrodial joints.
Synovial fluid, synovia.
Synovial membrane, the dense and very smooth connective tissue membrane which secretes synovia and surrounds synovial capsules and other synovial cavities.
... egg; a strong thrill was to be felt, especially when the knee was flexed, and with this expansile pulsation and a loud machinery murmur. The entry wound was firmly healed; the exit still furnished blood-stained serous discharge. The synovial cavity of the knee was distended and doughy on palpation. During the next three weeks the aneurism contracted considerably and the patient ... — Surgical Experiences in South Africa, 1899-1900 • George Henry Makins