quinonoid

adjective

qui·​no·​noid kwi-ˈnō-ˌnȯid How to pronounce quinonoid (audio) ˈkwi-nə- How to pronounce quinonoid (audio)
variants or quinoid
ˈkwi-ˌnȯid How to pronounce quinonoid (audio)
: resembling quinone especially in having a 6-membered carbon ring containing two double bonds

Word History

First Known Use

1878, in the meaning defined above

Time Traveler
The first known use of quinonoid was in 1878

Dictionary Entries Near quinonoid

quinonize

quinonoid

quinonyl

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Cite this Entry

“Quinonoid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/quinonoid. Accessed 1 Dec. 2024.

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Medical Definition

quinonoid

adjective
qui·​no·​noid kwi-ˈnō-ˌnȯid How to pronounce quinonoid (audio) ˈkwin-ə-ˌnȯid How to pronounce quinonoid (audio)
variants or quinoid
ˈkwi-ˌnȯid How to pronounce quinonoid (audio)
: resembling quinone
especially : having a structure characterized by a benzene nucleus containing two instead of three double bonds within the nucleus and two external double bonds attached to the nucleus either at ortho or para positions (as in the two carbonyl groups of quinones)
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