Definition of "dimer" [dimer]

• A molecule consisting of two identical simpler molecules. (noun)
• A chemical compound consisting of such molecules. (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.

• "Kinesin dimer/David S. Goodsell, Scripps Research Institute"
• "Two intertwined chains with globular heads on one end form a Kinesin dimer."
• "The activity of HIF-1 dimer, which is composed of α and β subunits, is modulated by the availability of the extremely labile oxygen-sensitive HIF-1α protein subunit."