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oligomer

American  
[uh-lig-uh-mer] / əˈlɪg ə mər /

noun

Chemistry.
  1. a polymer molecule consisting of a small number of monomers.


oligomer British  
/ ɒˈlɪɡəmə /

noun

  1. a compound of relatively low molecular weight containing up to five monomer units Compare polymer copolymer

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

oligomer Scientific  
/ ə-lĭg′ə-mər /
  1. A molecule that consists of a relatively small and specifiable number of monomers (usually less than five). Unlike a polymer, if one of the monomers is removed from an oligomer, its chemical properties are altered.


Other Word Forms

Etymology

Origin of oligomer

First recorded in 1965–70; oligo- + -mer

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The researchers also compared a simple liquid, oligomer styrene, with a related polymer liquid.

From Science Daily ● Mar. 30, 2026

This difference suggests a strong connection between oligomer growth and disease progression.

From Science Daily ● Oct. 24, 2025

“I hope that people will not become faint hearted as a result of what really looks like a very egregious example of malfeasance that’s squarely in the Aβ oligomer field,” he says.

From Science Magazine ● Jul. 20, 2022

In the 16 years following the landmark paper, Lesné and Ashe—separately or jointly—published many articles on their stellar oligomer.

From Science Magazine ● Jul. 20, 2022

Once formed, the oligomer becomes a template, or 'seed', that attracts new monomers, and aggregation around that nucleus proceeds rapidly.

From Nature ● Jul. 13, 2011

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