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Definition of "sclerosis" [‖Scle•ro•sis]

  • A thickening or hardening of a body part, as of an artery, especially from excessive formation of fibrous interstitial tissue. (noun)
  • A disease characterized by this thickening or hardening. (noun)
  • Botany The hardening of cells by the formation of a secondary wall and the deposition of lignin. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "sclerosis" in a sentence
  • "The company just received U.S. approval in late May for a new drug for Pompe disease, and its experimental biologic drug for multiple sclerosis is getting expedited review by the Food and Drug Administration."
  • "LUBLIN: They share the word sclerosis, but nothing else."
  • "Using genetics and stem cells, separate teams of researchers are investigating amyotrophic lateral sclerosis, which is commonly known by the name of the famed baseball player whose career was cut short by the disease."