alpha-helix

noun
al·pha-he·lix | \ˌal-fə-ˈhē-liks \

Definition of alpha-helix 

: the coiled structural arrangement of many proteins consisting of a single chain of amino acids stabilized by hydrogen bonds

Other Words from alpha-helix

alpha-helical \-ˈhe-li-kəl, -ˈhē-li- \ adjective

First Known Use of alpha-helix

1951, in the meaning defined above

Keep scrolling for more

Learn More about alpha-helix

Share alpha-helix

Statistics for alpha-helix

Look-up Popularity

Time Traveler for alpha-helix

The first known use of alpha-helix was in 1951

See more words from the same year

Keep scrolling for more

More Definitions for alpha-helix

alpha-helix

noun
al·pha-he·lix
variants: or α-helix \ˌal-fə-ˈhē-liks \

Medical Definition of alpha-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

Other Words from alpha-helix

alpha-helical \-ˈhel-i-kəl, -ˈhē-li- \ adjective

More from Merriam-Webster on alpha-helix

Britannica.com: Encyclopedia article about alpha-helix

Comments on alpha-helix

What made you want to look up alpha-helix? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

required by fashion, etiquette, or custom

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!