uracil

noun
ura·​cil | \ ˈyu̇r-ə-ˌsil How to pronounce uracil (audio) , -səl\

Definition of uracil

: a pyrimidine base C4H4N2O2 that is one of the four bases coding genetic information in the polynucleotide chain of RNA — compare adenine, cytosine, guanine, thymine

Examples of uracil in a Sentence

Recent Examples on the Web However, rather than the conventional duo of base pairs, adenine and uracil or cytosine and guanine, the molecules form hexamers, or six-membered rings. Quanta Magazine, "Chemists Seek Possible Precursor to RNA," 5 Feb. 2014

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'uracil.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of uracil

1890, in the meaning defined above

History and Etymology for uracil

International Scientific Vocabulary ur- entry 1 + acetic + -il (substance relating to)

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Dictionary Entries near uracil

ur-

Ur

-ura

uracil

urad

uraeus

U rail

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Statistics for uracil

Time Traveler for uracil

The first known use of uracil was in 1890

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More Definitions for uracil

uracil

noun
ura·​cil | \ ˈyu̇r-ə-ˌsil, -səl How to pronounce uracil (audio) \

Medical Definition of uracil

: a pyrimidine base C4H4N2O2 that is one of the four bases coding genetic information in the polynucleotide chain of RNA — compare adenine, cytosine, guanine, thymine

More from Merriam-Webster on uracil

Britannica.com: Encyclopedia article about uracil

Comments on uracil

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