macrocyclic

adjective

: containing or being a chemical ring that consists usually of 15 or more atoms

Examples of macrocyclic in a Sentence

Recent Examples on the Web
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Ivermectin was developed by Merck in the 1970s, decades before molnupiravir, and is classified as a macrocyclic lactone. Miriam Fauzia, USA TODAY, 12 Oct. 2021

Word History

Etymology

macro- + cyclic entry 1

First Known Use

1933, in the meaning defined above

Time Traveler
The first known use of macrocyclic was in 1933

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Cite this Entry

“Macrocyclic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/macrocyclic. Accessed 28 Jul. 2026.

Medical Definition

macrocyclic

adjective
: containing or being a chemical ring that consists usually of 15 or more atoms
a macrocyclic antibiotic
macrocyclic noun
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