semisynthetic

adjective
semi·​syn·​thet·​ic | \ ˌse-mē-sin-ˈthe-tik How to pronounce semisynthetic (audio) , ˌse-ˌmī-, -mi- \

Definition of semisynthetic

1 : produced by chemical alteration of a natural starting material semisynthetic penicillins
2 : containing both chemically identified and complex natural ingredients a semisynthetic diet

Examples of semisynthetic in a Sentence

Recent Examples on the Web The rate of drug overdose deaths involving heroin, natural and semisynthetic opioids and methadone were lower in 2018 than the previous year. Janet Adamy, WSJ, 30 Jan. 2020 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, 1 Feb. 2018

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

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First Known Use of semisynthetic

1937, in the meaning defined at sense 1

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Time Traveler for semisynthetic

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The first known use of semisynthetic was in 1937

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Dictionary Entries Near semisynthetic

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Cite this Entry

“Semisynthetic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/semisynthetic. Accessed 25 Oct. 2021.

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More Definitions for semisynthetic

semisynthetic

adjective
semi·​syn·​thet·​ic | \ -sin-ˈthet-ik How to pronounce semisynthetic (audio) \

Medical Definition of semisynthetic

1 : produced by chemical alteration of a natural starting material semisynthetic penicillins
2 : containing both chemically identified and complex natural ingredients a semisynthetic diet

Other Words from semisynthetic

semisynthetically \ -​i-​k(ə-​)lē How to pronounce semisynthetic (audio) \ adverb

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