peptide

noun
pep·​tide | \ ˈpep-ˌtīd How to pronounce peptide (audio) \

Definition of peptide

: any of various amides that are derived from two or more amino acids by combination of the amino group of one acid with the carboxyl group of another and are usually obtained by partial hydrolysis of proteins

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Other Words from peptide

peptidic \ pep-​ˈti-​dik How to pronounce peptidic (audio) \ adjective

Examples of peptide in a Sentence

Recent Examples on the Web

According to the league, Chandler tested positive for the growth-hormone-releasing peptide Ipamorelin. Alaa Abdeldaiem, SI.com, "Nets' Wilson Chandler Facing 25-Game Suspension for PED Use," 29 Aug. 2019 The tests measuring amyloid actually measure the ratio of two different sizes of the amyloid peptide – similar to using the ratio of HDL to LDL blood cholesterol to evaluate lipids. The Conversation, oregonlive.com, "Here’s what we know about blood tests for Alzheimer’s," 10 Aug. 2019 The Drunk Elephant C-Tango Multivitamin Eye Cream ($64; amazon.com) contains five different types of vitamin C and a chain of eight peptides to help stimulate circulation and brighten dark circles. Nikhita Mahtani, CNN Underscored, "Want to fight dark circles? Look for these ingredients in your next eye cream," 10 Aug. 2019 One of the crucial ways to study the history of proteins is to study peptides. David Grossman, Popular Mechanics, "We're All Born from the Same 20 Amino Acids, So Can't We All Just Get Along?," 2 Aug. 2019 In addition to the other ingredients, Dr. Lancer explains that a mask is typically infused with other ingredients like stem cells, hyaluronic acid, or peptides. Kathleen Hou, The Cut, "What’s in Your Sheet Mask?," 28 Mar. 2018 Many of those peptides, however, are inevitably parts of proteins that belong in the body. Quanta Magazine, "Immune Cells Measure Time to Identify Foreign Proteins," 3 June 2019 These injectable synthetic peptides, including tesamorelin and ipamorelin, increase your body’s natural production of growth hormone (rather than flooding the system with synthetic forms of the stuff) and are slightly more affordable. Tatiana Boncompagni, Harper's BAZAAR, "Inside Hollywood's Dangerous Anti-Aging Secret," 21 May 2019 Diminish fine lines and wrinkles with this new vegan retinol cream that fuses a blend of vitamin F and peptides to improve skin’s texture and sensitivity. Jenna Rennert, Vogue, "13 New Beauty Products Worth the Hype in 2019," 9 Jan. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'peptide.' 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 peptide

1906, in the meaning defined above

History and Etymology for peptide

International Scientific Vocabulary, from peptone

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Statistics for peptide

Last Updated

6 Sep 2019

Look-up Popularity

Time Traveler for peptide

The first known use of peptide was in 1906

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More Definitions for peptide

peptide

noun
pep·​tide | \ ˈpep-ˌtīd How to pronounce peptide (audio) \

Medical Definition of peptide

: any of various amides that are derived from two or more amino acids by combination of the amino group of one acid with the carboxyl group of another and are usually obtained by partial hydrolysis of proteins

Other Words from peptide

peptidic \ pep-​ˈtid-​ik How to pronounce peptidic (audio) \ adjective

More from Merriam-Webster on peptide

Britannica.com: Encyclopedia article about peptide

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