Word Pronunciation & Dictionary

Questions

What does ultracarbonaceous mean?
Extremely rich in carbon or carbon compounds.
Where does ultracarbonaceous come from?
From ultra- + carbonaceous. First use appears c. 1984.

How to pronounce ultracarbonaceous

  1. Open the pronunciation page — Open the Speakur entry for “ultracarbonaceous”.
  2. Read the phonetic spelling — Read the IPA spelling () so you know which sounds to aim for.
  3. Play the audio — Click Play to hear reference audio for “ultracarbonaceous”.
  4. Repeat and practice — Say “ultracarbonaceous” aloud, matching stress and vowels until it feels natural.