ddI

noun

ˌdē-(ˌ)dē-ˈī

often all capitalized

: a synthetic nucleoside C₁₀H₁₂N₄O₃ having properties and uses similar to those of ddC

called also didanosine

Word History

Etymology

di- + deoxy + inosine, a nucleoside

First Known Use

1988, in the meaning defined above

Time Traveler

The first known use of ddI was in 1988

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DDE

ddI

DDoS

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Cite this Entry

Style

“DdI.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ddI. Accessed 3 Nov. 2025.

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Medical Definition

ddI

noun

-ˈī

often all capitalized

: a synthetic nucleoside analog C₁₀H₁₂N₄O₃ having properties and uses similar to those of ddC

called also didanosine, dideoxyinosine

see videx

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ddI

noun

Word History

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Medical Definition

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