The Collaborative International Dictionary of English v.0.48:

Capsular \Cap"su*lar\, Capsulary \Cap"su*la*ry\, a. [Cf. F.
   capsulaire.]
   Of or pertaining to a capsule; having the nature of a
   capsule; hollow and fibrous.
   [1913 Webster]

   Capsular ligament (Anat.), a ligamentous bag or capsule
      surrounding many movable joints in the skeleton.
      [1913 Webster] Capsulate

WordNet (r) 3.0 (2006):

capsular
    adj 1: resembling a capsule; "the capsular ligament is a sac
           surrounding the articular cavity of a freely movable
           joint and attached to the bones"
    2: of or relating to a capsule