synovial fluid

from WordNet (r) 3.0 (2006)

synovial fluid
    n 1: viscid lubricating fluid secreted by the membrane lining
         joints and tendon sheaths etc. [syn: {synovia}, {synovial
         fluid}]

from The Collaborative International Dictionary of English v.0.48

Synovial \Syn*o"vi*al\, a. [Cf. F. synovial.] (Anat.)
   Of or pertaining to synovia; secreting synovia.
   [1913 Webster]

   {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.
      [1913 Webster]