: of, relating to, containing, resembling, or being protein

Examples of proteinaceous in a Sentence

Recent Examples on the Web Once in the gut, the larvae shed their proteinaceous coats upon exposure to the stomach acids and migrate to the mucosa of the bowels to mature into adults. Rebecca Kreston, Discover Magazine, 25 Dec. 2016 With the aid of a high-resolution microscope, the researchers pieced together how the proteinaceous pair defend against bacteria. Shi En Kim, Smithsonian Magazine, 20 July 2021 As Fulton explains, the layers of proteinaceous glue and paint that lend the models an aura of authenticity can shrink, delaminate and even pull away from the glass when subjected to dry conditions. Meilan Solly, Smithsonian, 29 Aug. 2019 Bitter, salty, and the proteinaceous flavor umami all set off their own neural cascades. Adam Rogers, WIRED, 16 May 2018

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

Word History


protein + -aceous

First Known Use

circa 1844, in the meaning defined above

Time Traveler
The first known use of proteinaceous was circa 1844

Dictionary Entries Near proteinaceous

Cite this Entry

“Proteinaceous.” Dictionary, Merriam-Webster, Accessed 28 May. 2024.

Medical Definition


pro·​tein·​aceous ˌprōt-ᵊn-ˈā-shəs How to pronounce proteinaceous (audio) ˌprō-ˌtēn- How to pronounce proteinaceous (audio)
: of, relating to, resembling, or being protein
proteinaceous materials
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