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nucleic acid

[noo-klee-ik, -kley-, nyoo-] /nuˈkli ɪk, -ˈkleɪ-, nyu-/
noun, Biochemistry
1.
any of a group of long, linear macromolecules, either DNA or various types of RNA, that carry genetic information directing all cellular functions: composed of linked nucleotides.
Origin
1890-1895
1890-95; nucle(us) + -ic; compare German Nucleïnsäure (1889)
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for nucleic acids

nucleic acid

/njuːˈkliːɪk; -ˈkleɪ-/
noun
1.
(biochem) any of a group of complex compounds with a high molecular weight that are vital constituents of all living cells See also RNA, DNA
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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nucleic acids in Medicine

nucleic acid nu·cle·ic acid (nōō-klē'ĭk, -klā'-, nyōō-)
n.
Any of a group of complex compounds found in all living cells and viruses, composed of purines, pyrimidines, carbohydrates, and phosphoric acid. Nucleic acids in the form of DNA and RNA control cellular function and heredity.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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nucleic acids in Science
nucleic acid
  (n-klē'ĭk)   
Any of a group of very large polymeric nucleotides that constitute the genetic material of living cells and viruses and that code for the amino acid sequences of proteins. Nucleic acids consist of either one or two long chains of repeating units called nucleotides, which consist of a nitrogen base (a purine or pyrimidine) attached to a sugar phosphate. The two main nucleic acids are DNA and RNA. In DNA, the nitrogen bases along the length of one chain are linked to complementary bases in the other chain by hydrogen bonds, and both chains coil around each other in a double helix. Particular sequences of nucleotides constitute genes and encode instructions for sequences of amino acids when proteins are synthesized. In RNA, which is usually single-stranded, complementary bases within the single strand may pair with each other, forming structures other than a double helix. See more at DNA, RNA.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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nucleic acids in Culture
nucleic acids [(nooh-klee-ik)]

Organic molecules found in the nuclei of cells. DNA and RNA, the best-known nucleic acids, govern heredity and the chemical processes in the cell.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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