lardacein

from The Century Dictionary.

• noun A proteid substance found as a deposit in certain diseased organs and tissues of the body.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Physiol. Chem.) A peculiar amyloid substance, colored blue by iodine and sulphuric acid, occurring mainly as an abnormal infiltration into the spleen, liver, etc.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun biochemistry A protein found in tissues affected with amyloid degeneration. It is insoluble in nearly all reagents, is not acted upon by gastric juice, and is not readily subject to putrefaction.