double helix


double helix

noun

: the shape formed by two parallel lines that twist around each other

Full Definition of DOUBLE HELIX

:  a helix or spiral consisting of two strands in the surface of a cylinder that coil around its axis; especially :  the structural arrangement of DNA in space that consists of paired polynucleotide strands stabilized by cross-links between purine and pyrimidine bases — compare alpha-helix, watson-crick model
dou·ble–he·li·cal \-ˈhe-li-kəl, -ˈhē-\ adjective

First Known Use of DOUBLE HELIX

1954

double helix

noun    (Medical Dictionary)

Medical Definition of DOUBLE HELIX

: a helix or spiral consisting of two strands in the surface of a cylinder that coil around its axis; especially : the structural arrangement of DNA in space that consists of paired polynucleotide strands stabilized by cross-links between purine and pyrimidine bases—compare alpha-helix, watson-crick model/art/med/dna.htm
dou·ble–he·li·cal \-ˈhel-i-kəl, -ˈhē-li-\ adjective

Browse

Next Word in the Dictionary: double house
Previous Word in the Dictionary: doublehearted
All Words Near: double helix

Seen & Heard

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

Get Our Free Apps
Voice Search, Favorites,
Word of the Day, and More
Join Us on FB & Twitter
Get the Word of the Day and More