: a compound containing the NH group or its substituted form NR that is derived from ammonia by replacement of two hydrogen atoms by a hydrocarbon group or other nonacid organic group

Examples of imine in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Researchers at the Japan Advanced Institute of Science and Technology (JAIST) designed a compound called pentafluorophenyl thiophene imine, or FPTI, to improve the protective layer that forms on graphite during the first few charging cycles. Neetika Walter, Interesting Engineering, 7 Sep. 2026 However, the remaining portion is converted by cytochrome P450 enzymes into N-acetyl-p-benzoquinone imine (NAPQI), a toxic metabolite. Ella Jeffries, Smithsonian Magazine, 28 Mar. 2025

Word History

Etymology

International Scientific Vocabulary, alteration of amine

First Known Use

1883, in the meaning defined above

Time Traveler
The first known use of imine was in 1883

Browse Nearby Words

Cite this Entry

“Imine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/imine. Accessed 10 Sep. 2026.

Medical Definition

: a compound containing the NH group or its substituted form NR that is derived from ammonia by replacement of two hydrogen atoms by a hydrocarbon group or other nonacid organic group

More from Merriam-Webster on imine

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster