dinucleotide

noun

di·​nu·​cle·​o·​tide (ˌ)dī-ˈn(y)ü-klē-ə-ˌtīd 

: a nucleotide consisting of two units each composed of a phosphate, a pentose, and a nitrogen base

Examples of dinucleotide in a Sentence

Recent Examples on the Web

Yet the shape of the part of the protein that produces the dinucleotide cGAMP signal has remained structurally unchanged for all that time. — Viviane Callier, Quanta Magazine, 15 Apr. 2026

The vitamin can help compensate for defects in the body’s ability to make a molecule, called nicotinamide adenine dinucleotide (NAD), which researchers have linked for the first time to healthy fetal development in humans. — Gretchen Vogel, Science | AAAS, 9 Aug. 2017

Originally, it was thought that this protein could only be activated by cyclic GMP-AMP (cGAMP), or similar cyclic dinucleotide molecules. — William A. Haseltine, Forbes, 21 Apr. 2022

Word History

First Known Use

circa 1927, in the meaning defined above

Phrases Containing dinucleotide

• flavin adenine dinucleotide
• nicotinamide adenine dinucleotide
• nicotinamide adenine dinucleotide phosphate

Rhymes for dinucleotide

• acetamide
• acetonide
• acidified
• antimonide
• beatified
• benzaldehyde
• borohydride
• chalcogenide
• commodified
• decalcified
• declassified
• disaccharide

Medical Definition

dinucleotide

noun

di·​nu·​cle·​o·​tide (ˌ)dī-ˈn(y)ü-klē-ə-ˌtīd 

: a nucleotide consisting of two units each composed of a phosphate, a pentose, and a purine or pyrimidine base