monoxide: meaning, definition, pronunciation and examples
C1Technical/Scientific, Formal, Everyday (in the specific phrase 'carbon monoxide')
Quick answer
What does “monoxide” mean?
A compound containing one oxygen atom bonded to another element, particularly known in the context of carbon monoxide (CO).
Audio
Pronunciation
Definition
Meaning and Definition
A compound containing one oxygen atom bonded to another element, particularly known in the context of carbon monoxide (CO).
Specifically refers to any chemical compound consisting of one oxygen atom per molecule, most notably carbon monoxide (CO). In common parlance, 'monoxide' is almost always preceded by 'carbon' and understood as a poisonous gas.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or usage. The compound term 'carbon monoxide' is universally used and understood.
Connotations
Identical high-danger connotations in both dialects due to the lethal nature of carbon monoxide poisoning.
Frequency
Equally high frequency in technical contexts and public safety announcements. The standalone word 'monoxide' is rare in both varieties.
Grammar
How to Use “monoxide” in a Sentence
[Element] monoxidee.g., carbon monoxideVocabulary
Collocations
Examples
Examples of “monoxide” in a Sentence
verb
British English
- (Not applicable as a verb)
American English
- (Not applicable as a verb)
adverb
British English
- (Not applicable as an adverb)
American English
- (Not applicable as an adverb)
adjective
British English
- The monoxide alarm started chirping.
- Monoxide poisoning is a serious risk in winter.
American English
- The monoxide detector needs a new battery.
- Monoxide levels in the garage were dangerously high.
Usage
Meaning in Context
Business
Used in contexts of property safety regulations and appliance manufacturing standards.
Academic
Common in chemistry, environmental science, and public health research papers.
Everyday
Almost exclusively in the context of home safety (e.g., 'check the carbon monoxide detector') and news reports on poisoning incidents.
Technical
Precise terminology in chemistry for compounds with one oxygen atom per molecule.
Vocabulary
Synonyms of “monoxide”
Watch out
Common Mistakes When Using “monoxide”
- Using 'monoxide' as a standalone noun (e.g., 'There was monoxide in the room' – incorrect; must specify 'carbon monoxide').
- Misspelling as 'monoxyde' or 'monoxside'.
- Confusing 'carbon monoxide' (CO) with 'carbon dioxide' (CO2).
FAQ
Frequently Asked Questions
No, they are different compounds. Carbon monoxide (CO) has one oxygen atom and is highly toxic. Carbon dioxide (CO2) has two oxygen atoms and is a natural product of respiration and combustion.
Rarely. It is almost always used in a compound form like 'carbon monoxide' or 'nitrogen monoxide'. Using it alone is technically correct but uncommon and vague in everyday language.
Because it is colourless, odourless, and tasteless, so its presence is undetectable by human senses. It binds to haemoglobin in the blood, preventing oxygen transport, which can lead to unconsciousness and death without warning.
Immediately evacuate the premises, call emergency services, and do not re-enter until professionals have declared it safe. Seek fresh air immediately.
A compound containing one oxygen atom bonded to another element, particularly known in the context of carbon monoxide (CO).
Monoxide is usually technical/scientific, formal, everyday (in the specific phrase 'carbon monoxide') in register.
Monoxide: in British English it is pronounced /mɒˈnɒksaɪd/, and in American English it is pronounced /məˈnɑːksaɪd/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “Silent killer (referring to carbon monoxide)”
Learning
Memory Aids
Mnemonic
Think 'MONO' (one) + 'OXIDE' (oxygen compound) = a compound with ONE oxygen atom. Remember 'Carbon MONOxide' is the 'silent MONO' that can kill.
Conceptual Metaphor
DANGER IS INVISIBLE / POISON IS A THIEF (as carbon monoxide is odourless, colourless, and steals the body's ability to use oxygen).
Practice
Quiz
What is the primary element combined with oxygen in the most commonly referenced 'monoxide'?