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C10H14N2O5 A nucleoside derived from deoxyribonucleic acid; essential growth factor for certain microorganisms in mediums lacking vitamin B12 and folic acid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a natural organic compound, a nucleoside consisting of the pyrimidine base thymine and the carbohydrate deoxyri-bose. Thymidine is made up of acicular crystals that are readily soluble in water. With respect to chemical properties, it is a weak base. Thymidine is present in all living cells as a constituent of deoxyribonucleic acid (DNA). Thymidine tagged with radioactive tritium is extensively used in laboratories to study DNA biosynthesis and the repair of DNA after injury.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.