pyrimidine

py·rim·i·dine

 (pī-rĭm′ĭ-dēn′, pĭ-)

n.

1. A single-ringed, crystalline organic base, C₄H₄N₂, that is the parent compound of a large group of biologically important compounds.

2. Any of a group of substituted derivatives of pyrimidine, including the nitrogen bases uracil, cytosine, and thymine, which are components of nucleic acids. Barbiturates and certain other drugs are also pyrimidines.

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[Alteration of pyridine.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

pyrimidine

(paɪˈrɪmɪˌdiːn)

n

1. (Elements & Compounds) a liquid or crystalline organic compound with a penetrating odour; 1,3-diazine. It is a weakly basic soluble heterocyclic compound and can be prepared from barbituric acid. Formula: C4H4N2

2. (Elements & Compounds) Also called: pyrimidine base any of a number of similar compounds having a basic structure that is derived from pyrimidine, including cytosine, thymine, and uracil, which are constituents of nucleic acids

[C20: variant of pyridine]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

py•rim•i•dine

(paɪˈrɪm ɪˌdin, pɪ-)

n.

1. a heterocyclic compound, C₄H₄N₂, that is the basis of several important biochemical substances.

2. one of several pyrimidine derivatives, esp. the bases cytosine, thymine, and uracil, which are fundamental constituents of nucleic acids.

[1880–85;b. pyridine and imide]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

py·rim·i·dine

(pī-rĭm′ĭ-dēn′)

Any of a group of organic compounds having a single ring with alternating carbon and nitrogen atoms. Pyrimidines include the bases cytosine, thymine, and uracil, which are components of nucleic acids.

The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Thesaurus

Noun	1.	pyrimidine - any of several basic compounds derived from pyrimidine alkali, base - any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water; "bases include oxides and hydroxides of metals and ammonia" cytosine, C - a base found in DNA and RNA and derived from pyrimidine; pairs with guanine T, thymine - a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine
	2.	pyrimidine - a heterocyclic organic compound with a penetrating odor organic compound - any compound of carbon and another element or a radical

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

Translations

pyrimidine