Definition of "adenosine" []

• A nucleoside, C10H13N5O4, composed of adenine linked to ribose, that is a structural component of nucleic acids and the major molecular component of ADP, AMP, and ATP. (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.

• ""Bubble boy" disease: severe combined immunodeficiency (SCID) due to a lack of an enzyme called adenosine deaminase."
• "SCID arises in infants with a genetic defect that leaves them unable to produce an enzyme called adenosine deaminase."
• "This form of SCID arises in babies with a genetic defect that leaves them deficient of an enzyme called adenosine deaminase."