alpha-helix

noun

al·​pha-he·​lix ˌal-fə-ˈhē-liks How to pronounce alpha-helix (audio)
: the coiled structural arrangement of many proteins consisting of a single chain of amino acids stabilized by hydrogen bonds
alpha-helical
ˌal-fə-ˈhe-li-kəl
-ˈhē-li- How to pronounce alpha-helix (audio)
adjective

Word History

First Known Use

1951, in the meaning defined above

Time Traveler
The first known use of alpha-helix was in 1951

Dictionary Entries Near alpha-helix

Cite this Entry

“Alpha-helix.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alpha-helix. Accessed 21 Dec. 2024.

Medical Definition

alpha-helix

noun
al·​pha-he·​lix
variants or α-helix
: the coiled structural arrangement of many proteins consisting of a single chain of amino acids stabilized by hydrogen bonds compare beta-sheet, double helix
alpha-helical adjective

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