dioxide
noun
Simple meaning
An oxide containing two atoms of oxygen in the molecule.
Pronunciation
Say it like this:
dyahksydSay the bold part a little louder.
IPA pronunciation (US)
daɪˈɑksaɪd
This word is pronounced essentially the same in American and British English, so one transcription covers both.
IPA (International Phonetic Alphabet) is a standard way of writing speech sounds.
Definition
Everyday modern meanings first, grouped by part of speech.
noun
chemistry
An oxide containing two atoms of oxygen in the molecule
Word at a Glance
- Difficulty
- B1 · Intermediate (estimated)
- Frequency
- Moderately Common
- Typical Use
- General and technical use
Word Aura™
How this word commonly comes across.
This meaning: An oxide containing two atoms of oxygen in the molecule
Used this way, dioxide is a specialist word that usually carries little praise or criticism of its own. This is a scientific use: it names something precisely within a field of study, so it appears in research and teaching more than in conversation.
- Emotional tone
- Neutral
- Formality
- Specialist/technical
- Intensity
- Not strongly marked
- How common
- Specialized
- Connotation
- Clinical and technical
- Usage feel
- Technical and specialized
Where it naturally appears
- Science
- Academic writing
- Technical/specialist writing
Usage note
In general conversation this sense usually needs explaining — outside its field, people reach for a plainer word.
Word Aura describes common impressions, not a measurement. Tone changes with sentence, speaker, relationship and situation.
More ways to use dioxide
- “Carbon dioxide is a gas found in Earth's atmosphere.”
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Common Patterns and Combinations
How this word naturally appears with others.
Word Family
Related forms, grouped by how they connect.
Compound terms
Established multiword terms.
A heavy odorless colorless gas formed during respiration and by the decomposition of organic substances.
Acidosis resulting from reduced gas exchange in the lungs (as in emphysema or pneumonia).
An explosive gas (ClO2) used chiefly in bleaching paper or starch or soap or flour and in water purification.
A highly poisonous brown gas (NO2).
A white or colorless vitreous insoluble solid (SiO2).
A colorless toxic gas (SO2) that occurs in the gases from volcanoes.
Related Words
Connected to the same idea, not synonyms.
- monoxidenoun
- respirationnoun
- nitricadjective
- oxidenoun
- carbonatenoun
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Dictionary data from Wiktionary via the Free Dictionary API. Simple meanings, combinations and word intelligence are built from verified reference data, no AI is used to load this page.