con·trac·tile (kən-trāk'təl, -tīl') adj. Capable of contracting or causing contraction: Muscle is a contractile tissue. con'trac·til'i·ty (kŏn'trāk-tĭl'ĭ-tē) n.
Main Entry: con·trac·tile Pronunciation: k&n-'trak-t&l, -"tIl Function: adjective : having or concerned with the power orproperty of contracting <contractile proteins of muscle fibrils>
Main Entry: con·trac·til·i·ty Pronunciation: "kän-"trak-'til-&t-E Function: noun Inflected Form: plural-ties : the capability or quality of shrinking or contracting; especially: the power of muscle fibers of shortening into a more compact form