ribonucleotide: meaning, definition, pronunciation and examples
C1/C2Scientific/Technical
Quick answer
What does “ribonucleotide” mean?
A nucleotide containing ribose as its pentose sugar, a basic building block of RNA.
Audio
Pronunciation
Definition
Meaning and Definition
A nucleotide containing ribose as its pentose sugar, a basic building block of RNA.
A biomolecule consisting of a nitrogenous base (adenine, guanine, cytosine, or uracil) linked to a ribose sugar, which is in turn linked to a phosphate group. It serves as a monomeric unit in RNA synthesis and participates in various cellular signaling and metabolic processes (e.g., cyclic adenosine monophosphate, cAMP).
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or spelling. Pronunciations differ subtly (see IPA).
Connotations
None beyond its technical, scientific meaning.
Frequency
Used with identical frequency and contexts in UK and US scientific literature.
Grammar
How to Use “ribonucleotide” in a Sentence
ribonucleotide + of + [type] (e.g., ribonucleotide of adenine)ribonucleotide + triphosphate (e.g., ATP)synthesis/incorporation of + ribonucleotideVocabulary
Collocations
Examples
Examples of “ribonucleotide” in a Sentence
adjective
British English
- The ribonucleotide composition was analysed.
- Ribonucleotide pools must be regulated.
American English
- The ribonucleotide sequence was determined.
- Ribonucleotide metabolism is a key target.
Usage
Meaning in Context
Business
Virtually never used.
Academic
Core term in biochemistry, molecular biology, and genetics courses and research.
Everyday
Extremely rare outside of educational or medical contexts.
Technical
Essential term in laboratory protocols, scientific papers, and pharmaceutical research (e.g., 'ribonucleotide reductase inhibitor').
Vocabulary
Synonyms of “ribonucleotide”
Strong
Neutral
Weak
Vocabulary
Antonyms of “ribonucleotide”
Watch out
Common Mistakes When Using “ribonucleotide”
- Misspelling as 'ribonucleatide' or 'ribonucleatid'.
- Confusing it with 'ribonucleoside' (lacks the phosphate group).
- Using it as an uncountable noun (*much ribonucleotide* instead of *many ribonucleotides*).
FAQ
Frequently Asked Questions
No, it is a specific subtype. All ribonucleotides are nucleotides, but not all nucleotides are ribonucleotides (e.g., deoxyribonucleotides for DNA).
Normally, no. DNA uses deoxyribonucleotides. However, occasional misincorporation of ribonucleotides into DNA is a source of genomic instability.
Named after their nitrogenous bases: Adenosine monophosphate (AMP), Guanosine monophosphate (GMP), Cytidine monophosphate (CMP), and Uridine monophosphate (UMP).
The presence of the hydroxyl group on the ribose sugar makes RNA more chemically reactive and less stable than DNA, which has profound consequences for their roles in the cell.
A nucleotide containing ribose as its pentose sugar, a basic building block of RNA.
Ribonucleotide is usually scientific/technical in register.
Ribonucleotide: in British English it is pronounced /ˌraɪbəʊˈnjuːklɪətaɪd/, and in American English it is pronounced /ˌraɪboʊˈnuːkliətaɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “None”
Learning
Memory Aids
Mnemonic
"RIB-O-nucleotide": Think of RIBose, the sugar in RNA. It's the RIB-cage of the RNA structure.
Conceptual Metaphor
A LEGO BRICK for building RNA (the RNA structure is built by connecting these bricks in a sequence).
Practice
Quiz
What is the defining sugar component of a ribonucleotide?