aspartic acid


as·​par·​tic acid ə-ˈspär-tik- How to pronounce aspartic acid (audio)
: a crystalline amino acid C4H7NO4 found especially in plants

Examples of aspartic acid in a Sentence

Recent Examples on the Web Also concerning are Magnesium Aspartate and Magnesium Glutamate because of the additional ingredients — glutamic acid and aspartic acid, that are added. Allison Futterman, Discover Magazine, 29 Jan. 2024 The committee further noted that, when consumed, aspartame quickly breaks down in the gastrointestinal tract into three common metabolites: phenylalanine, aspartic acid, and methanol. Beth Mole, Ars Technica, 17 July 2023 Testogen contains Fenugreek extract, D-aspartic acid, Vitamin D3, zinc, Korean Red Ginseng, boron, nettle leaf extract, magnesium, bioperine, and vitamins B6 and K1. Dallas News, 1 Feb. 2022 One way this could happen is if the gene for haemagglutinin, an important protein on the surface of the virus, underwent an amino acid–swapping mutation that replaced a particular glycine, more often seen in bird flu viruses, with an aspartic acid, which is more characteristic of human viruses. Kai Kupferschmidt, Science | AAAS, 17 May 2021 This is the purest form of D-aspartic acid currently on the market. Amber Smith, Discover Magazine, 15 Jan. 2023 Along with magnesium and other all-natural testosterone-boosting ingredients, this booster includes vitamins K1, B5, and D-aspartic acid among its ingredients. Amber Smith, Discover Magazine, 14 Jan. 2023 This testosterone booster also contains magnesium, D-aspartic acid, vitamins K1, B5, and other organic components that increase testosterone. Amber Smith, Discover Magazine, 15 Jan. 2023 TestoPrime comes in capsules that contain natural ingredients like fenugreek, ginseng, ashwagandha extract, and D-aspartic acid. Dallas News, 12 Aug. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'aspartic acid.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


International Scientific Vocabulary, irregular from Latin asparagus

First Known Use

1829, in the meaning defined above

Time Traveler
The first known use of aspartic acid was in 1829

Dictionary Entries Near aspartic acid

Cite this Entry

“Aspartic acid.” Dictionary, Merriam-Webster, Accessed 15 Apr. 2024.

Kids Definition

aspartic acid

as·​par·​tic acid ə-ˌspärt-ik- How to pronounce aspartic acid (audio)
: an amino acid found especially in plants

Medical Definition

aspartic acid

as·​par·​tic acid ə-ˌspärt-ik- How to pronounce aspartic acid (audio)
: a crystalline amino acid C4H7NO4 that is obtained from many proteins by hydrolysis
abbreviation Asp

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