heterocyclic

adjective

het·​ero·​cy·​clic ˌhe-tə-rō-ˈsī-klik How to pronounce heterocyclic (audio)
-ˈsi-
: relating to, characterized by, or being a ring composed of atoms of more than one kind
heterocycle noun
heterocyclic noun

Example Sentences

Recent Examples on the Web Grilling meat of any kind leads to the formation of two separate families of cancer-causing chemicals (carcinogens): the heterocyclic amines (HCAs) and polycyclic aromatic hydrocarbons. Dr. Keith Roach, oregonlive, 7 Dec. 2021 One group, called HAAs (heterocyclic aromatic amines), form during high-temperature reactions between substances in muscle tissue. Emily Sohn, chicagotribune.com, 7 June 2017 One group, called HAAs (heterocyclic aromatic amines), form during high-temperature reactions between substances in muscle tissue. Emily Sohn, Sun-Sentinel.com, 6 June 2017 One group, called HAAs (heterocyclic aromatic amines), form during high-temperature reactions between substances in muscle tissue. Emily Sohn, chicagotribune.com, 7 June 2017 One group, called HAAs (heterocyclic aromatic amines), form during high-temperature reactions between substances in muscle tissue. Emily Sohn, Sun-Sentinel.com, 6 June 2017 One group, called HAAs (heterocyclic aromatic amines), form during high-temperature reactions between substances in muscle tissue. Emily Sohn, chicagotribune.com, 7 June 2017 One group, called HAAs (heterocyclic aromatic amines), form during high-temperature reactions between substances in muscle tissue. Emily Sohn, chicagotribune.com, 7 June 2017 One group, called HAAs (heterocyclic aromatic amines), form during high-temperature reactions between substances in muscle tissue. Emily Sohn, chicagotribune.com, 7 June 2017 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heterocyclic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

Etymology

International Scientific Vocabulary

First Known Use

1899, in the meaning defined above

Time Traveler
The first known use of heterocyclic was in 1899

Dictionary Entries Near heterocyclic

Cite this Entry

“Heterocyclic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heterocyclic. Accessed 29 Mar. 2023.

Medical Definition

heterocyclic

1 of 2 adjective
het·​ero·​cy·​clic ˌhet-ə-rō-ˈsī-klik How to pronounce heterocyclic (audio) -ˈsik-lik How to pronounce heterocyclic (audio)
: relating to, characterized by, or being a ring composed of atoms of more than one kind
heterocyclic chemical compounds

heterocyclic

2 of 2 noun
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