The Collaborative International Dictionary of English v.0.48:

Cohesive \Co*he"sive\, a.
   1. Holding the particles of a homogeneous body together; as,
      cohesive attraction; producing cohesion; as, a cohesive
      force.
      [1913 Webster]

   2. Cohering, or sticking together, as in a mass; capable of
      cohering; tending to cohere; as, cohesive clay.
      [1913 Webster]

   Cohesive attraction. See under Attraction. --
      Co*he"sive*ly, adv. -- Co*he"sive*ness, n.
      [1913 Webster]