: having a relatively long chain of atoms and especially carbon atoms in the molecule
long-chain hydrocarbons

Examples of long-chain 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.
Elapid venom contains peptides called short-chain neurotoxins (SNX) and long-chain neurotoxins (LNX). Katherine Bourzac, Scientific American, 7 May 2025 Bacterial fermentations also encourage the formation of long-chain fatty acids. Joseph V Micallef, Forbes.com, 26 Apr. 2025 More Missions to Come The discovery of these long-chain organic molecules is a major breakthrough in studying Mars’ habitability. Discover Magazine, 26 Mar. 2025 Unlike long-chain triglycerides, the liver absorbs MCTs and breaks them down quickly. Melissa Nieves, Verywell Health, 18 Mar. 2025 Unlike long-chain fatty acids, MCTs are absorbed intact from the small intestine. Chelsea Rae Bourgeois, Rdn, Ld, Health, 4 Feb. 2025 The scientists sought to identify antidote proteins to combat three representative target toxins: a short-chain alpha neurotoxin, a long-chain alpha neurotoxin, and a cytotoxin. Lauren Leffer, Popular Science, 15 Jan. 2025 Complex carbohydrates are long-chain molecules and include polysaccharides, starch, and fiber. Allison Herries, Verywell Health, 4 Jan. 2025 These kinds of fatty acids are digested more quickly and easily than long-chain fatty acids. Isabel Vasquez Rd Ldn, Health, 2 Nov. 2024

Word History

First Known Use

1898, in the meaning defined above

Time Traveler
The first known use of long-chain was in 1898

Browse Nearby Words

Cite this Entry

“Long-chain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/long-chain. Accessed 25 May. 2025.

Medical Definition

long-chain

adjective
: having a relatively long chain of atoms and especially carbon atoms in the molecule
long-chain hydrocarbons
Last Updated: - Updated example sentences
Love words? Need even more definitions?

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