thymidine: meaning, definition, pronunciation and examples
C2 (Proficient/Technical)Technical/Scientific (biochemistry, molecular biology, pharmacology)
Quick answer
What does “thymidine” mean?
A nucleoside component of DNA, consisting of thymine linked to deoxyribose.
Audio
Pronunciation
Definition
Meaning and Definition
A nucleoside component of DNA, consisting of thymine linked to deoxyribose.
In biochemistry and molecular biology, a specific building block of deoxyribonucleic acid; also used in research contexts as a labeled compound for tracking DNA synthesis.
Dialectal Variation
British vs American Usage
Differences
Spelling is identical. Pronunciation differs slightly (see IPA). Usage is identical across technical fields.
Connotations
No difference in connotation; purely a technical term.
Frequency
Equally low-frequency in general discourse, but standard and equally frequent in relevant scientific literature in both regions.
Grammar
How to Use “thymidine” in a Sentence
The enzyme phosphorylates thymidine.The assay measures thymidine uptake.The analogue mimics thymidine.Vocabulary
Collocations
Examples
Examples of “thymidine” in a Sentence
adjective
British English
- The thymidine kinase gene is essential for viral replication.
American English
- The thymidine analog drug inhibits DNA synthesis.
Usage
Meaning in Context
Business
Rare, except in biotech/pharma company reports discussing drug mechanisms (e.g., 'thymidine kinase inhibitors').
Academic
Core term in biochemistry, molecular biology, virology, and pharmacology journals and textbooks.
Everyday
Virtually never used.
Technical
Standard term for the specific DNA nucleoside; used in protocols (e.g., 'add 5 µL of 10 mM thymidine'), research papers, and drug descriptions.
Vocabulary
Synonyms of “thymidine”
Neutral
Weak
Watch out
Common Mistakes When Using “thymidine”
- Misspelling as 'thymadine' or 'thymadine'.
- Using 'thymine' when referring to the nucleoside (thymine is just the base).
- Incorrect plural: 'thymidines' is acceptable when referring to multiple molecules/types.
FAQ
Frequently Asked Questions
Thymine is the nitrogenous base alone. Thymidine is the complete nucleoside, composed of thymine chemically linked to a deoxyribose sugar molecule.
No. Thymidine (deoxythymidine) is specific to DNA. In RNA, the analogous nucleoside is uridine (containing uracil instead of thymine).
It is an enzyme that adds a phosphate group to thymidine, creating thymidine monophosphate, which is a step in the synthesis of DNA building blocks. It is a common target for antiviral and anticancer drugs.
Because thymidine is incorporated exclusively into DNA during its synthesis. By tagging it with a radioactive or fluorescent label, scientists can track and measure DNA replication, cell proliferation, and cell cycle activity.
A nucleoside component of DNA, consisting of thymine linked to deoxyribose.
Thymidine is usually technical/scientific (biochemistry, molecular biology, pharmacology) in register.
Thymidine: in British English it is pronounced /ˈθaɪ.mɪ.diːn/, and in American English it is pronounced /ˈθaɪ.mɪˌdiːn/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Think: **Thym**ine + ri**bose** (deoxy) = THYMIDINE. It's the 'T' in the A-T-G-C alphabet of DNA.
Conceptual Metaphor
A 'building block' or 'letter' in the genetic 'alphabet' or 'code'.
Practice
Quiz
Thymidine is a nucleoside, meaning it consists of: