dimer

noun

di·​mer ˈdī-mər 

: a compound formed by the union of two radicals or two molecules of a simpler compound

specifically : a polymer formed from two molecules of a monomer

dimeric

(ˌ)dī-ˈmer-ik 

adjective

dimerization

ˌdī-mə-rə-ˈzā-shən 

noun

dimerize

ˈdī-mə-ˌrīz 

transitive verb

Examples of dimer in a Sentence

Recent Examples on the Web

Many partner up as dimers or join even larger complexes. — William A. Haseltine, Forbes.com, 20 Jan. 2026

The moonlight form of the protein can be created only from the darkness dimer — not from the free-floating sunlight form. — Elise Cutts, Quanta Magazine, 19 Dec. 2023

Computer simulations showed that these extra ions form pairs of atoms called (Nb/Mo)₂O₉ dimers inside the crystal. — Atharva Gosavi, Interesting Engineering, 12 Aug. 2025

In this study, business class did not differ significantly from economy class for development of an elevated D-dimer. — Dr. Keith Roach, oregonlive, 20 July 2021

Word History

Etymology

International Scientific Vocabulary

First Known Use

circa 1926, in the meaning defined above

Rhymes for dimer

• climber
• eimer
• primer
• rhymer
• timer
• alzheimer
• heterodimer

Medical Definition

dimer

noun

di·​mer ˈdī-mər 

: a compound formed by the union of two radicals or two molecules of a simpler compound

specifically : a polymer formed from two molecules of a monomer

dimeric

(ˈ)dī-ˈmer-ik 

adjective

dimerization noun

or British dimerisation

ˌdī-mə-rə-ˈzā-shən 

dimerize transitive verb

or British dimerise

ˈdī-mə-ˌrīz 

dimerized or British dimerised; dimerizing or British dimerising