The Collaborative International Dictionary of English v.0.48:

Scirrhous \Scir"rhous\ (sk[i^]r"r[u^]s), a. [NL. scirrhosus.]
   (Med.)
   Proceeding from scirrhus; of the nature of scirrhus;
   indurated; knotty; as, scirrhous affections; scirrhous
   disease. [Written also skirrhous.]
   [1913 Webster]