dimer

American  

[dahy-mer] / ˈdaɪ mər /

noun

Chemistry.

1. a molecule composed of two identical, simpler molecules.

2. a polymer derived from two identical monomers.

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dimer British  

/ ˈdaɪmə /

noun

1. chem

   1. a molecule composed of two identical simpler molecules (monomers)

   2. a compound consisting of dimers

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dimer Scientific  

/ dī′mər /

1. Any of various chemical compounds made of two smaller identical or similar molecules (called monomers) that are linked together. Dimers are linked by hydrogen bonds, coordinate bonds, or covalent bonds. Sucrose is a dimer composed of the monomers glucose and fructose.

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Other Word Forms

• dimeric
  adjective

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Etymology

Origin of dimer

First recorded in 1905–10; di- ¹ + -mer

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Example Sentences

See Examples For:

dimer

When two nearby ions attempt to share an electron across a bond, they may form what scientists call an atomic dimer.

From Science Daily ● Mar. 16, 2026

Both versions of the verticillin molecule are built from two identical halves that must be connected into a structure called a dimer.

From Science Daily ● Dec. 22, 2025

In some cases, binding of the ligand causes dimerization of the receptor, which means that two receptors bind to each other to form a stable complex called a dimer.

From Textbooks ● Jun. 9, 2022

Peaper, D. R., Wearsch, P. A. & Cresswell, P. Tapasin and ERp57 form a stable disulfide-linked dimer within the MHC class I peptide-loading complex.

From Nature ● Nov. 5, 2017

If the dimer is not removed and repaired it will lead to a mutation.

From Textbooks ● Apr. 25, 2013

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