follow Dictionary.com

Your favorite word could be our Word of the Day!

pyrimidine

[pahy-rim-i-deen, pi-, pir-uh-mi-deen, -din] /paɪˈrɪm ɪˌdin, pɪ-, ˈpɪr ə mɪˌdin, -dɪn/
noun, Biochemistry
1.
a heterocyclic compound, C 4 H 4 N 2 , that is the basis of several important biochemical substances.
2.
one of several pyrimidine derivatives, especially the bases cytosine, thymine, and uracil, which are fundamental constituents of nucleic acids.
Origin
1880-1885
1880-85; blend of pyridine and imide
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
British Dictionary definitions for pyrimidine

pyrimidine

/paɪˈrɪmɪˌdiːn/
noun
1.
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.
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
Word Origin
C20: variant of pyridine
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
Cite This Source
pyrimidine in Medicine

pyrimidine py·rim·i·dine (pī-rĭm'ĭ-dēn', pĭ-)
n.

  1. A crystalline organic base that is the parent substance of various biologically important derivatives.

  2. Any of several basic compounds derived from or structurally related to pyrimidine, especially the nucleic acid constituents uracil, cytosine, and thymine.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
pyrimidine in Science
pyrimidine
  (pī-rĭm'ĭ-dēn')   
Any of a group of organic compounds having a single six-member ring in which the first and third atoms are nitrogen and the rest are carbon. Pyrimidines include the bases cytosine, thymine, and uracil, which are components of DNA and RNA. Pyrimidine rings are also components of several larger compounds, such as thiamine and some synthetic barbiturates.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
Cite This Source

Word of the Day

Difficulty index for pyrimidine

Some English speakers likely know this word

Word Value for pyrimidine

18
0
Scrabble Words With Friends