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nucleic acid

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nu⋅cle⋅ic ac⋅id

  [noo-klee-ik, -kley-, nyoo-]
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–noun Biochemistry.
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:
1890–95; nucle(us) + -ic; cf. G Nucleïnsäure (1889)
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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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® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

nucleic acid 
1892, translation of Ger. Nukleinsäure (1889), from Nuklein "substance obtained from a cell nucleus."
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: nu·cle·ic acid
Pronunciation: n(y)u-"klE-ik-, -"klA-
Function: noun
: any of various acids (as an RNA or a DNA) composed ofnucleotide chains
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

nucleic acid nu·cle·ic acid (n&oomacr;-klē'ĭk, -klā'-, ny&oomacr;-)
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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