thymidine

American  

[thahy-mi-deen] / ˈθaɪ mɪˌdin /

noun

Biochemistry.

1. a nucleoside, C 10 H 14 N 2 O 5 , containing thymine and deoxyribose, that is a constituent of DNA.

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thymidine British  

/ ˈθaɪmɪˌdiːn /

noun

1. the crystalline nucleoside of thymine, found in DNA. Formula: C 10 H 14 N 2 O 5

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thymidine Scientific  

/ thī′mĭ-dēn′ /

1. A nucleoside composed of thymine and deoxyribose that (with the addition of phosphate to form the nucleotide thymine) occurs in DNA. Radioactively tagged thymidine has been used in genetics research to study DNA synthesis in the nuclei of cells undergoing cell division. Chemical formula: C ₁₀ H ₁₄ N ₂ O ₅ .

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Etymology

Origin of thymidine

Blend of thymine and -ide ( def. )

Compare meaning

How does thymidine compare to similar and commonly confused words? Explore the most common comparisons:

• thymidine vs. thymine

Example Sentences

Starting with Sample A and ending with Sample D, the DNA content of the cells is measured at different times after thymidine is removed.

From Textbooks • Jun. 9, 2022

The cells are then placed in medium lacking thymidine, which releases the block, and the cells begin to divide again.

From Textbooks • Jun. 9, 2022

One of the precursors, thymidine triphosphate, had been labeled with tritium.

From Scientific American • Oct. 9, 2012

DNA polymerase activity in living cells has been tested by introducing purified DNA and tritium-labeled thymidine into eggs.

From Scientific American • Oct. 9, 2012

The company designed and executed a six-step manufacturing process to convert a key ingredient, thymidine, a biological chemical first harvested from herring sperm, into AZT.

From Time Magazine Archive