semisynthetic

adjective
semi·​syn·​thet·​ic | \ˌse-mē-sin-ˈthe-tik, 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

Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, "A town of 3,200 was flooded with nearly 21 million pain pills as addiction crisis worsened, lawmakers say," 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, "A town of 3,200 was flooded with nearly 21 million pain pills as addiction crisis worsened, lawmakers say," 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, "A town of 3,200 was flooded with nearly 21 million pain pills as addiction crisis worsened, lawmakers say," 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, "A town of 3,200 was flooded with nearly 21 million pain pills as addiction crisis worsened, lawmakers say," 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, "A town of 3,200 was flooded with nearly 21 million pain pills as addiction crisis worsened, lawmakers say," 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, "A town of 3,200 was flooded with nearly 21 million pain pills as addiction crisis worsened, lawmakers say," 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, "A town of 3,200 was flooded with nearly 21 million pain pills as addiction crisis worsened, lawmakers say," 1 Feb. 2018 Hydrocodone and oxycodone are semisynthetic opioids used to treat pain. Author: Lindsey Bever, Anchorage Daily News, "A town of 3,200 was flooded with nearly 21 million pain pills as addiction crisis worsened, lawmakers say," 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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The first known use of semisynthetic was in 1937

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More Definitions for semisynthetic

semisynthetic

adjective
semi·​syn·​thet·​ic | \-sin-ˈthet-ik \

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 \ adverb

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