Word Pronunciation & Dictionary

carbon dioxide

/ˌkɑɹ.bən daɪˈɑk.saɪd/

Word Rarity Rare

Frequency: 3.74 in modern English

Syllables: car-bon di-ox-ide
IPA: /ˌkɑɹ.bən daɪˈɑk.saɪd/

26

Scrabble Score

13

Letters

4

Syllables

10

Unique Chars

Meaning

noun

The normal oxide of carbon, CO₂; a colorless, odorless gas formed during respiration and combustion and consumed by plants during photosynthesis.

Uncountable

Example Sentences

"There were dozens of presentations in 2008, including: […"
"Oxygen levels on Earth skyrocketed 2.4 billion years ago, when cyanobacteria evolved photosynthesis: the ability to convert water and carbon dioxide into carbohydrates and waste oxygen using solar energy."
"Each year, human activities release more carbon dioxide into the atmosphere than natural processes can remove, causing the amount of carbon dioxide in the atmosphere to increase."

Regional Pronunciation

American English: /ˌkɑɹ.bən daɪˈɑk.saɪd/
British English: /ˌkɑː.bən daɪˈɒk.saɪd/

Usage

Uncountable

Inflected Forms

carbon dioxid (alternative, obsolete) carbondioxid (alternative, obsolete)

Phrases

carbon dioxide-equivalent carbon dioxide snow carbon offset dry ice

Frequently Paired Words

carbon offset carbonate dry ice carbon monoxide

Synonyms

carbonic acid gas CO₂ E290 co2

Questions

How do you pronounce carbon dioxide?: The recorded pronunciation is /ˌkɑɹ.bən daɪˈɑk.saɪd/.
What does carbon dioxide mean?: The normal oxide of carbon, CO₂; a colorless, odorless gas formed during respiration and combustion and consumed by plants during photosynthesis.

How to pronounce carbon dioxide

Open the pronunciation page — Open the Speakur entry for “carbon dioxide”.
Read the phonetic spelling — Read the IPA spelling (/ˌkɑɹ.bən daɪˈɑk.saɪd/) so you know which sounds to aim for.
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