compressible

/K AH0 M P R EH1 S AH0 B AH0 L/
adjective
  1. 1

    able to be compressed

  2. 2

    (topology, of a surface embedded in a 3-dimensional manifold) Containing a circle that does not serve as the boundary of a disk that lies in the surface, but does serve as boundary of a disk that lies in the ambient manifold.