Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A pyrimidine base, C5H6N2O2, that is an essential constituent of DNA.

from The Century Dictionary.

  • noun A colorless crystalline compound, C5H6N2O2, prepared by the action of dilute sulphuric acid on thymic acid. It may also be obtained synthetically. It sublimes in plates and melts above 250° C. Also called 5-methyluracil.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun biochemistry, genetics A base, C5H6N2O2, obtained by applying sulphuric acid to thymic acid; it pairs with adenine in DNA.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a base found in DNA (but not in RNA) and derived from pyrimidine; pairs with adenine

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[thym(ic acid), acid obtained from the thymus + –ine.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From thymic + -ine.

Examples

  • It is evident from the formulae that in thymine and cytosine a ring-like system of carbon and nitrogen atoms must be assumed.

    Albrecht Kossel - Nobel Lecture

  • The two others, thymine and cytosine, showed a simpler composition; experiments of breakdown and synthesis led to the result that in thymine there must be a grouping of the carbon and nitrogen atoms corresponding to the following scheme:

    Albrecht Kossel - Nobel Lecture

  • The UVA1 induced a type of lesion called thymine dimers on the deeper basal layers of the skin.

    Yahoo! News: Business - Opinion

  • Thymine dioxygenase 1.14.11.6 1 Nomenclature EC number 1.14.11.6 Systematic name thymine,2-oxoglutarate: oxygen oxidoreductase (7-hydroxylating) Recommended name thymine dioxygenase Synonyms 5-hydroxy-methyluracil dioxygenase 5-hydroxy-methyluracil oxygenase thymine 7-hydroxylase thymine dioxygenase CAS registry number 37256-67-0 2 Source Organism

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  • The electrons in a DNA molecule such as thymine, for instance, knit together and are firmly attached to thymine's atoms.

    The Berkeley Daily Planet, The East Bay's Independent Newspaper

  • Each nucleotide unit is composed of a sugar, a phosphate, and one of four bases, adenine, cytosine, guanine, or thymine.

    Spider Bones

  • I realized that I could use a simple quilt block to represent each of the four bases in DNA: cytosine, guanine, adenine, and thymine.

    Boing Boing

  • He paired adenine with adenine instead of pairing it with thymine.

    HOUSE RULES

  • These symbols represent the four basic chemical letters, or bases, the body uses to form DNA--guanine, cytosine, adenine and thymine.

    Gene Machine

  • These symbols represent the four basic chemical letters, or bases, the body uses to form DNA--guanine, cytosine, adenine and thymine.

    Gene Machine

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